www.amazon.com
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urlscan Pro
23.208.217.153
Public Scan
URL:
https://www.amazon.com/gp/product/B01M74LZYP/ref=dbs_a_def_rwt_hsch_vapi_tkin_p1_i7
Submission: On July 13 via manual from CA — Scanned from CA
Submission: On July 13 via manual from CA — Scanned from CA
Form analysis 9 forms found in the DOM
Name: site-search — GET /s/ref=nb_sb_noss
<form id="nav-search-bar-form" accept-charset="utf-8" action="/s/ref=nb_sb_noss" class="nav-searchbar nav-progressive-attribute" method="GET" name="site-search" role="search">
<div class="nav-left">
<div id="nav-search-dropdown-card">
<div class="nav-search-scope nav-sprite">
<div class="nav-search-facade" data-value="search-alias=aps">
<span id="nav-search-label-id" class="nav-search-label nav-progressive-content" style="width: auto;">Kindle Store</span>
<i class="nav-icon"></i>
</div>
<span id="searchDropdownDescription" class="nav-progressive-attribute" style="display:none">Select the department you want to search in</span>
<select aria-describedby="searchDropdownDescription" class="nav-search-dropdown searchSelect nav-progressive-attrubute nav-progressive-search-dropdown" data-nav-digest="k+fyIAyB82R9jVEmroQ0OWwSW3A=" data-nav-selected="15"
id="searchDropdownBox" name="url" style="display: block; top: 2.5px;" tabindex="0" title="Search in">
<option value="search-alias=aps">All Departments</option>
<option value="search-alias=arts-crafts-intl-ship">Arts & Crafts</option>
<option value="search-alias=automotive-intl-ship">Automotive</option>
<option value="search-alias=baby-products-intl-ship">Baby</option>
<option value="search-alias=beauty-intl-ship">Beauty & Personal Care</option>
<option value="search-alias=stripbooks-intl-ship">Books</option>
<option value="search-alias=fashion-boys-intl-ship">Boys' Fashion</option>
<option value="search-alias=computers-intl-ship">Computers</option>
<option value="search-alias=deals-intl-ship">Deals</option>
<option value="search-alias=digital-music">Digital Music</option>
<option value="search-alias=electronics-intl-ship">Electronics</option>
<option value="search-alias=fashion-girls-intl-ship">Girls' Fashion</option>
<option value="search-alias=hpc-intl-ship">Health & Household</option>
<option value="search-alias=kitchen-intl-ship">Home & Kitchen</option>
<option value="search-alias=industrial-intl-ship">Industrial & Scientific</option>
<option selected="selected" current="parent" value="search-alias=digital-text">Kindle Store</option>
<option value="search-alias=luggage-intl-ship">Luggage</option>
<option value="search-alias=fashion-mens-intl-ship">Men's Fashion</option>
<option value="search-alias=movies-tv-intl-ship">Movies & TV</option>
<option value="search-alias=music-intl-ship">Music, CDs & Vinyl</option>
<option value="search-alias=pets-intl-ship">Pet Supplies</option>
<option value="search-alias=instant-video">Prime Video</option>
<option value="search-alias=software-intl-ship">Software</option>
<option value="search-alias=sporting-intl-ship">Sports & Outdoors</option>
<option value="search-alias=tools-intl-ship">Tools & Home Improvement</option>
<option value="search-alias=toys-and-games-intl-ship">Toys & Games</option>
<option value="search-alias=videogames-intl-ship">Video Games</option>
<option value="search-alias=fashion-womens-intl-ship">Women's Fashion</option>
</select>
</div>
</div>
</div>
<div class="nav-fill">
<div class="nav-search-field ">
<input type="text" id="twotabsearchtextbox" value="" name="field-keywords" autocomplete="off" placeholder="" class="nav-input nav-progressive-attribute" dir="auto" tabindex="0" aria-label="Search">
</div>
<div id="nav-iss-attach"></div>
</div>
<div class="nav-right">
<div class="nav-search-submit nav-sprite">
<span id="nav-search-submit-text" class="nav-search-submit-text nav-sprite nav-progressive-attribute" aria-label="Go">
<input id="nav-search-submit-button" type="submit" class="nav-input nav-progressive-attribute" value="Go" tabindex="0">
</span>
</div>
</div>
</form>POST https://www.amazon.com/gp/digital/fiona/buy.html/ref=dbs_p_ebk_r00_pbcb_cv1c00
<form method="post" id="buyOneClick" action="https://www.amazon.com/gp/digital/fiona/buy.html/ref=dbs_p_ebk_r00_pbcb_cv1c00" spacing="none">
<input type="hidden" name="ASIN.0" value="B01M74LZYP"> <input type="hidden" name="addNarration" value="0" id="addNarration"> <input type="hidden" name="audibleAsin" id="audibleAsin"> <input type="hidden" name="audibleOurPrice" id="audibleOurPrice">
<input type="hidden" name="addAyceBenefit" value="0" id="addAyceBenefit"> <input type="hidden" name="offerListingID.0"
value="MKcuj%2BhKiqplESel3x1ipmZmxIN3iJk6AmId0SeYOYzQF8hGd3aRby7YjCN3bCqUH7UM3aZv0Ma6TCk92QgrG63RW58gXvLByW%2FipCXKoJbwgMH2u5MyuDrXdHNkt9b6ldIfg7UO1JfZlofts2JY3cMcjY8Pqg1TI2BTsXMWowGvK%2Fpuuct2RNodoZtd%2FY0z"> <input type="hidden" name="t"
value="fiona"> <input type="hidden" name="itemCount" value="1"> <input type="hidden" name="emailSubscriptionIdList" id="emailSubscriptionId"> <input type="hidden" name="buyActionIdentifier"
value="arn:action:pa:1:QjAxTTc0TFpZUDpBVFZQREtJS1gwREVSOkJ1eTpudWxsOjEyLjE1OlVTRDpudWxs" id="buyActionIdentifier"> <input type="hidden" name="cor.0" value="CA"> <input type="hidden" name="displayedPrice" value="12.15"> <input type="hidden"
name="displayedPriceCurrencyCode" value="USD"> <input type="hidden" name="displayedPriceCurrency" value="USD"> <input type="hidden" name="transactionMode" value="one-click" id="transactionMode"> <input type="hidden" name="isPreorder" value="0">
<input type="hidden" name="subtype.0" value="STANDARD" id="subtype0"> <input type="hidden" name="isPaymentInstrumentSelected" value="0" id="isPaymentInstrumentSelected">
<div class="a-button-stack">
<div class="a-button-stack"> <span id="checkoutButtonId" class="a-button a-button-normal a-spacing-none a-button-oneclick a-button-icon"><span class="a-button-inner"><i class="a-icon a-icon-1click"></i><input id="one-click-button"
name="submit.one-click-order.x" class="a-button-input" type="submit" value="Buy now with 1-Click <sup>&reg</sup>" aria-labelledby="checkoutButtonId-announce"><span id="checkoutButtonId-announce" class="a-button-text a-text-center"
aria-hidden="true"> Buy now with 1-Click <sup>®</sup> </span></span></span> </div>
<script type="text/javascript">
// Send csm counter on 'Buy' button click as well preferred payment method buy button click.
P.when('A', 'jQuery', 'accordionInstrumentation', 'ready').execute(function(A, $, instrumentation) {
$('#checkoutButtonId').click(function() {
var counter = instrumentation.counter();
if (counter) {
counter.buttonClick("buyButton");
var preferredPaymentMethodbuyButtonText = '';
if (preferredPaymentMethodbuyButtonText) {
counter.buttonClick(preferredPaymentMethodbuyButtonText);
}
}
});
});
</script>
<div class="a-section a-spacing-micro a-spacing-top-medium"> </div>
<style>
.buyBoxORDivider>h5 {
font-weight: bold !important;
color: #333333 !important;
}
</style>
<script type="text/javascript">
P.when('A', 'jQuery').execute(function(A, $) {
var SERVICE_COUNTER_ENABLE_ONECLICK_ON_MASH_REAPPEAR = "dbsOneClickEnableOneClickButtonOnMashReappear";
var SERVICE_COUNTER_DISABLED_CLICK = "dbsDisabledButtonOneClickButton";
var SERVICE_COUNTER_RE_ENABLE = "dbsReEnableOneClickButton";
var cooldownMilliseconds = 5000;
var _PAGE_REAPPEAR_FROM_CACHE_MASH_EVENT = 'mash:willReappear';
function logCounter(counter) {
if (window.ue && window.ue.count) {
window.ue.count(counter, 1);
}
}
$.fn.preventMultiSubmission = function() {
var currForm = $(this);
currForm.submit(function(e) {
if (currForm.data('submitted') === true) {
logCounter(SERVICE_COUNTER_DISABLED_CLICK);
e.preventDefault();
} else {
currForm.data('submitted', true);
setTimeout(function() {
logCounter(SERVICE_COUNTER_RE_ENABLE);
currForm.data('submitted', false);
}, cooldownMilliseconds); //Re-enable the button after cooldown time
}
});
// Fix for TT: https://t.corp.amazon.com/P25461968
// We should NOT freeze the 1-Click button when user returns to the DP page by hitting back buttton
// This is an issue in mshop since the page gets cached in history
A.on(_PAGE_REAPPEAR_FROM_CACHE_MASH_EVENT, function() {
logCounter(SERVICE_COUNTER_ENABLE_ONECLICK_ON_MASH_REAPPEAR);
currForm.data('submitted', false);
});
};
$("#buyOneClick").preventMultiSubmission();
A.on.ready(function() {
$("#sendSample").preventMultiSubmission();
});
});
</script>
<script type="text/javascript">
P.when('A', 'jQuery').execute(function(A, $) {
/*
Claimed Applicable Promotions
Expose a jQuery event trigger here that will show a message about
what promotions will be applied to this purchase. Since the "You Save"
message and price is calculated pre-promotion, we'll hide that message
to avoid confusion.
*/
A.on('kindle_price_block_show_promotions', function(promotionText, numberOfPromotions) {
//Show list of promotions
$('#kindle_applied_promotions').html(promotionText).children().css('textDecoration', 'none');
//Show promotion stackable message if there is more than one promotion
if (numberOfPromotions > 1) {
$('#kindle_promo_multiple_promo_message').show();
}
//Hide the amount saved and show the popover
$('.kindle-price .ebooks-price-savings').hide();
$('#kindle_promo_message').show();
});
});
</script>
<span class="a-declarative" data-action="a-popover" data-csa-c-type="widget" data-csa-c-func-deps="aui-da-a-popover"
data-a-popover="{"closeButtonLabel":"Close","name":"promo-in-price-block","position":"triggerBottom","popoverLabel":"Promotions apply when you purchase"}"
data-csa-c-id="dlyuah-vuzak9-dae49z-1k4u34">
<p id="kindle_promo_message" class="a-spacing-small a-spacing-top-small a-text-center a-size-small a-color-link">
<a id="kindle_promo_message_popover" href="javascript:void(0)" role="button" class="a-popover-trigger a-declarative"> Promotions apply when you purchase <i class="a-icon a-icon-popover"></i></a> </p>
</span>
<div class="a-popover-preload" id="a-popover-promo-in-price-block">
<p class="a-spacing-small a-spacing-top-small"> These promotions will be applied to this item: </p>
<p id="kindle_applied_promotions"> </p>
<p id="kindle_promo_multiple_promo_message" class="a-spacing-small a-color-tertiary"> Some promotions may be combined; others are not eligible to be combined with other offers. For details, please see the Terms & Conditions associated with
these promotions. </p>
</div>
<style type="text/css">
#kindle_promo_message,
#kindle_promo_multiple_promo_message {
display: none;
}
#kindle_promo_message_popover {
text-decoration: none;
}
</style>
</div>
<div id="deliverTo" class="a-section a-spacing-micro a-spacing-top-mini a-text-center">
<div class="a-section a-spacing-none a-spacing-top-micro celwidget" data-csa-c-id="29debx-beh5j1-be347k-yc4sfr" data-cel-widget=""> </div>
<p>Deliver to your Kindle or other device</p>
</div>
<script type="a-state" data-a-state="{"key":"deliverToState"}">
{"asinRequiresSecureDelivery":false,"secureDeliveryInfoWithHeader":false,"isTextbook":false,"deliverToDropdownName":"a:dropdown:selected:device.encryptedDeviceAccountId","updateRequiredHeader":"Update required"}</script>
<style type="text/css">
.deviceDisabled .a-dropdown-link {
color: #aaa !important;
pointer-events: none;
}
.deviceDisabled {
cursor: not-allowed;
}
</style>
</form><form id="addToCart" action=""><input data-addnewaddress="add-new" id="cartAddressNew" name="dropdown-selection" type="hidden" value="add-new" class="nav-progressive-attribute"><input data-addnewaddress="add-new" id="cartAddressUsed"
name="dropdown-selection-ubb" type="hidden" value="add-new" class="nav-progressive-attribute"></form>POST /digital/bulk-checkout?ref=bulk_con_bfo
<form method="post" class="digital-bulk-form" action="/digital/bulk-checkout?ref=bulk_con_bfo" spacing="none">
<div class="a-row a-spacing-small">
<h1 class="a-size-base-plus">Buy for others</h1><span class="a-size-base">Give as a gift or purchase for a team or group.<br><span class="a-declarative" data-action="a-popover" data-csa-c-type="widget" data-csa-c-func-deps="aui-da-a-popover"
data-a-popover="{"name":"consumerBuyForOthersPopover","position":"triggerHorizontal"}"
data-csa-c-id="hm0ijb-zfq6iy-fr80sv-idhpu4"><a href="javascript:void(0)" role="button" class="a-popover-trigger a-declarative">Learn more<i class="a-icon a-icon-popover"></i></a></span>
<div class="a-popover-preload" id="a-popover-consumerBuyForOthersPopover">
<h1 class="a-size-base-plus a-spacing-small a-text-center">Buying and sending eBooks to others</h1>
<hr aria-hidden="true" class="a-divider-normal">
<div class="a-row">
<div class="a-column a-span3 a-text-right"><span aria-hidden="true" class="learn_more_icons quantity"></span></div>
<div class="a-column a-span6 a-text-center">
<div class="a-column a-span3"><span aria-hidden="true" class="learn_more_icons arrow"></span></div>
<div class="a-column a-span6"><span aria-hidden="true" class="learn_more_icons deliver"></span></div>
<div class="a-column a-span3 a-span-last"><span aria-hidden="true" class="learn_more_icons arrow"></span></div>
</div>
<div class="a-column a-span3 a-text-left a-span-last"><span aria-hidden="true" class="learn_more_icons anyDevice"></span></div>
</div>
<div class="a-row">
<div class="a-column a-span4 a-text-center a-spacing-base"><span>Select quantity</span></div>
<div class="a-column a-span4 a-text-center a-spacing-base"><span>Buy and send eBooks</span></div>
<div class="a-column a-span4 a-text-center a-spacing-base a-span-last"><span>Recipients can read on any device</span></div>
</div>
<div class="a-row">
<p class="a-spacing-base a-text-left a-size-small a-color-secondary"><span>Additional gift options are available when buying one eBook at a time.
</span><span><a class="a-link-normal" target="_blank" rel="noopener" href="/help/kindle/booksforothers/overview/ref=bfo_pop_adl">Learn more</a></span></p>
</div>
<hr aria-hidden="true" class="a-divider-normal">
<p class="a-size-small a-color-secondary">These ebooks can only be redeemed by recipients in the US. Redemption links and eBooks cannot be resold.</p>
</div>
</span>
</div>
<div id="simple-quantity-picker" class="a-section"><input type="hidden" id="quantity-form-field" name="quantity" value="1">
<div id="quantity-picker-grid-row" class="a-row a-spacing-top-micro a-grid-vertical-align a-grid-center">
<div class="a-column a-span12 aok-nowrap a-span-last">
<div class="a-section a-spacing-small"><span id="quantity-picker-label">Quantity: </span><span class="a-declarative" data-action="quantity-update-text-action" data-csa-c-type="widget"
data-csa-c-func-deps="aui-da-quantity-update-text-action" data-quantity-update-text-action="{}" data-csa-c-id="gnrn8z-qcgz7l-ne2im-1k5tiq"><input type="tel" maxlength="3" value="1" id="quantity-update-text" autocomplete="off"
class="a-input-text quantity-text-input aok-hidden"></span><span class="a-declarative" data-action="quantity-dropdown-action" data-csa-c-type="widget" data-csa-c-func-deps="aui-da-quantity-dropdown-action"
data-quantity-dropdown-action="{}" data-csa-c-id="lynh5f-842l3k-sdyt94-ev2ixw"><span class="a-dropdown-container"><select name="" autocomplete="off" id="quantity-dropdown-select" tabindex="0" data-action="a-dropdown-select"
class="a-native-dropdown a-declarative">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
<option value="11">11</option>
<option value="12">12</option>
<option value="13">13</option>
<option value="14">14</option>
<option value="15">15+</option>
</select><span tabindex="-1" id="quantity-dropdown" data-a-class="quantity-selector " class="a-button a-button-dropdown quantity-selector" aria-hidden="true" style="min-width: 0%;"><span class="a-button-inner"><span
class="a-button-text a-declarative" data-csa-c-func-deps="aui-da-a-dropdown-button" data-csa-c-type="widget" data-csa-interaction-events="click" data-action="a-dropdown-button" aria-hidden="true"
data-csa-c-id="nk5tsg-95djes-u63meo-9ls278"><span class="a-dropdown-prompt">1</span></span><i class="a-icon a-icon-dropdown"></i></span></span></span></span></div>
<div class="a-section"><span class="a-declarative" data-action="quantity-selected-button-action" data-csa-c-type="widget" data-csa-c-func-deps="aui-da-quantity-selected-button-action" data-quantity-selected-button-action="{}"
data-csa-c-id="6yz977-g0vo5i-wt7sfg-3ljbej"><span id="buy-for-others-buy-button" class="a-button a-spacing-none a-button-base showable web bfoBuyButton"><span class="a-button-inner"><input data-bfotype="con" class="a-button-input"
type="submit" value="Buy for others" aria-labelledby="buy-for-others-buy-button-announce"><span id="buy-for-others-buy-button-announce" class="a-button-text" aria-hidden="true">Buy for others</span></span></span></span></div>
</div>
</div>
<div id="quantity-picker-warning" class="a-box a-alert-inline a-alert-inline-warning aok-hidden a-spacing-micro a-spacing-top-mini" aria-live="polite" aria-atomic="true" style="display: none;">
<div class="a-box-inner a-alert-container"><i class="a-icon a-icon-alert"></i>
<div class="a-alert-content">This item has a maximum order quantity limit.</div>
</div>
</div><input type="hidden" name="" id="bfoSimpleQuantityPickerParams" data-auto-correct="false" data-call-to-action-id="#buy-for-others-buy-button" data-change-on-update="true" data-hide-css="aok-hidden" data-max-drop-down-quantity="14"
data-max-quantity="80" data-min-drop-down-quantity="1" data-quantity="1" data-textbox-only="false">
</div><input type="hidden" name="displayedPrice" value="9.99"><input type="hidden" name="quantityLimit" value="80"><input type="hidden" name="actionId" value="arn:action:pa:1:QjAxTTc0TFpZUDpBVFZQREtJS1gwREVSOkdpZnQ6bnVsbDo5Ljk5OlVTRDpudWxs"><input
type="hidden" name="csrf" value="g8ZuPBwfP0/3HcypI8dSmyIfbnF8MqvFwV0YhDrLkAWJAAAAAQAAAABiz1pucmF3AAAAAL1Z8Ja/E9xfqJT7XVH9gA=="><input type="hidden" name="asin" value="B01M74LZYP"><input type="hidden" name="displayedPriceCurrencyCode"
value="USD"><input type="hidden" name="cor.0" value="US"><input type="hidden" name="offerListingId"
value="GxDTR21h4IfFlZY7T3jELIPPArdugga%2FKV%2BIxfhUfKamsjYV5DJyLKSLYv9MXfPzek%2FEinh8Oxti%2FKamryHfEqdYCXOEdqf0Q%2FaqeKaLegjh5CyeCM7jot4u%2FX5puXKG9gCoU%2Bs7h7l6VpnsD7aL4zQpPAf9zkI9Unef0osBp7%2F%2Fjj41O%2FvM5vI2WUG%2FsaBM">
</form>POST /api/bifrost/acquisitions/v1/actions/arn:action:bifrost:dbs:1:QjAxTTc0TFpZUDpTYW1wbGU=?&x-client-id=ebook-dp
<form id="sendSample" method="post" action="/api/bifrost/acquisitions/v1/actions/arn:action:bifrost:dbs:1:QjAxTTc0TFpZUDpTYW1wbGU=?&x-client-id=ebook-dp" class="a-spacing-micro"> <input type="hidden" name="csrf"
value="g4mkmQm/JG+Sn+oN8WPZTke2m1KkmC0F/2AYoGJJDK84AAAAAQAAAABiz1pucmF3AAAAAKs+FBXVfD4nuL9rqj+gAw=="> <span id="sendSampleButton" class="a-button a-spacing-none a-button-base full-width"><span class="a-button-inner"><input class="a-button-input"
type="submit" value="Send a free sample" aria-labelledby="sendSampleButton-announce"><span id="sendSampleButton-announce" class="a-button-text" aria-hidden="true"> Send a free sample </span></span></span>
<div id="sendSampleDeliverTo">
<div id="deliverTo" class="a-section a-spacing-micro a-spacing-top-mini a-text-center">
<div class="a-section a-spacing-none a-spacing-top-micro celwidget" data-csa-c-id="szj0r2-y8gckc-oe86lz-jpqpy0" data-cel-widget=""> </div>
<p>Deliver to your Kindle or other device</p>
</div>
<script type="a-state" data-a-state="{"key":"deliverToState"}">
{"asinRequiresSecureDelivery":false,"secureDeliveryInfoWithHeader":false,"isTextbook":false,"deliverToDropdownName":"a:dropdown:selected:device.encryptedDeviceAccountId","updateRequiredHeader":"Update required"}</script>
<style type="text/css">
.deviceDisabled .a-dropdown-link {
color: #aaa !important;
pointer-events: none;
}
.deviceDisabled {
cursor: not-allowed;
}
</style>
</div>
</form>POST /gp/product/handle-buy-box
<form method="post" id="addToWishListForm" action="/gp/product/handle-buy-box" class="a-content">
<input type="hidden" id="session-id" name="session-id" value="141-7754466-1461563">
<input type="hidden" id="ASIN" name="ASIN" value="B01M74LZYP">
<input type="hidden" id="rsid" name="rsid" value="141-7754466-1461563">
<input type="hidden" id="sourceCustomerOrgListID" name="sourceCustomerOrgListID" value="">
<input type="hidden" id="sourceCustomerOrgListItemID" name="sourceCustomerOrgListItemID" value="">
<input type="hidden" name="wlPopCommand" value="">
<input type="hidden" id="offerListingID" name="offerListingID" value="">
<input type="hidden" id="isMerchantExclusive" name="isMerchantExclusive" value="0">
<input type="hidden" id="merchantID" name="merchantID" value="">
<input type="hidden" id="nodeID" name="nodeID" value="">
<input type="hidden" id="storeID" name="storeID" value="">
<input type="hidden" id="viewID" name="viewID" value="glance">
<script>
function atwlEarlyClick(e) {
e.preventDefault();
if (window.atwlLoaded) {
return; //if JS is loaded then we can ignore the early click case
}
var ADD_TO_LIST_FROM_DETAIL_PAGE_VENDOR_ID = "website.wishlist.detail.add.earlyclick";
var paramMap = {
"asin": "B01M74LZYP",
"vendorId": ADD_TO_LIST_FROM_DETAIL_PAGE_VENDOR_ID,
"isAjax": "false"
}
var url = "/hz/wishlist/additemtolist?ie=UTF8";
for (var param in paramMap) {
url += "&" + param + "=" + paramMap[param];
}
var xhr = new XMLHttpRequest();
xhr.open("POST", url, false);
xhr.setRequestHeader("anti-csrftoken-a2z", "g08X9YcjBYWAvlNdawbekxXz0+5x8Jgq6PEZkRxuqlBhAAAAAQAAAABiz1pucmF3AAAAAHuL9oHQYR32uqP6iUf9gA==");
xhr.onload = function() {
window.location = xhr.responseURL; //Needed to force a redirect; not supported on IE!
}
xhr.send();
}
</script>
<style type="text/css">
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FINDING FIBONACCI: THE QUEST TO REDISCOVER THE FORGOTTEN MATHEMATICAL GENIUS WHO
CHANGED THE WORLD KINDLE EDITION
by
Keith Devlin (Author)
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A compelling firsthand account of Keith Devlin's ten-year quest to tell
Fibonacci's story
In 2000, Keith Devlin set out to research the life and legacy of the medieval
mathematician Leonardo of Pisa, popularly known as Fibonacci, whose book Liber
abbaci has quite literally affected the lives of everyone alive today. Although
he is most famous for the Fibonacci numbers—which, it so happens, he didn't
invent—Fibonacci's greatest contribution was as an expositor of mathematical
ideas at a level ordinary people could understand. In 1202, Liber abbaci—the
"Book of Calculation"—introduced modern arithmetic to the Western world. Yet
Fibonacci was long forgotten after his death, and it was not until the 1960s
that his true achievements were finally recognized.
Finding Fibonacci is Devlin's compelling firsthand account of his ten-year quest
to tell Fibonacci's story. Devlin, a math expositor himself, kept a diary of the
undertaking, which he draws on here to describe the project's highs and lows,
its false starts and disappointments, the tragedies and unexpected turns, some
hilarious episodes, and the occasional lucky breaks. You will also meet the
unique individuals Devlin encountered along the way, people who, each for their
own reasons, became fascinated by Fibonacci, from the Yale professor who traced
modern finance back to Fibonacci to the Italian historian who made the crucial
archival discovery that brought together all the threads of Fibonacci's
astonishing story.
Fibonacci helped to revive the West as the cradle of science, technology, and
commerce, yet he vanished from the pages of history. This is Devlin's search to
find him.
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EDITORIAL REVIEWS
REVIEW
"In his jaunty book Finding Fibonacci, Keith Devlin sets out to tell the elusive
story of the 13th-century mathematician Leonardo of Pisa."---James Ryerson, New
York Times Book Review
"Devlin leads a cheerful pursuit to rediscover the hero of 13th-century European
mathematics, taking readers across centuries and through the back streets of
medieval and modern Italy in this entertaining and surprising history. . . .
Devlin relates Leonardo's adventures with brio and charm. Readers will enjoy
this deft and engaging mix of history, mathematics, and personal travelogue." ―
Publishers Weekly
"Finding Fibonacci showcases Devlin's writerly flair. My favourite passages are
the incredible story of how Liber Abaci (or at least, the edition he wrote in
1228, the sole surviving one) became available in English for the first time -
to this day the only modern-language translation."---Davide Castelvecchi, Nature
"[Devlin] talks his way into Italian research libraries in search of early
manuscripts, photographs all 11 street signs on Via Leonardo Fibonacci in
Florence and strives to cultivate a love for numbers in his readers."---Andrea
Marks, Scientific American
"Finding Fibonacci [does] much to restore Leonardo to his proper place in
contemporary Western culture."---Dan Friedman, Los Angeles Review of Books
"[E]ngaging and entertaining." ― Library Journal
"A charming new book."---Martijn van Calmthout, de Volkskrant
"All in all a book to be recommended. If you already read The Man of Numbers it
is most informative to read this 'behind the scenes' version and know how it
came about (and what happened after its publication). If you didn't know The Man
of Numbers, you at least get a summary of what is in there too. Only it is told
in a much more personal and lively version."---Adhemar Bultheel, European
Mathematical Society
"Readers will enjoy this charming account of the inevitable hitches familiar to
anyone pursuing historical research . . . There is much here to enjoy. Devlin's
enthusiasm for his subject is infectious, and this reader, at least, has been
inspired to return to Sigler’s translation of Leonardo’s important book."---Tony
Mann, Times Higher Education
"What would make you write a book about writing a book you recently published on
a 13th-century mathematician? When you're Stanford University’s Keith Devlin
(aka, NPR’s 'The Math Guy') and the mathematician is Leonardo of Pisa (aka,
'Fibonacci'), the story of researching the first book, The Man of Numbers,
becomes an incredible story in itself: Finding Fibonacci: The Quest to
Rediscover the Forgotten Mathematical Genius Who Changed the World. What makes
Devlin’s story so compelling is that it involves many other people, multiple
countries, 900+ years, and enough setbacks, twists and turns, courage, and
fortitude to rival fictional adventure. Throw in the idea that Leonardo’s work
helped revolutionize the world forever, parallels with another earth-shaking
revolutionary, Steve Jobs, sprinkle well with the best-known number sequence of
all time, and you have yourself a real page-turner."---Math-Blog,
"Finding Fibonacci is a tale not just about Devlin's work on Leonardo of Pisa.
It is also about the seminal contemporary efforts of others in making Leonardo’s
work better known. . . . Like his earlier work, Man of Numbers, this latest book
can be appreciated by anyone with a modest background in mathematics and an
interest in how mathematics helps shape the world we live in."---MAA Reviews,
"How Fibonacci came to write a work that has astounding relevance to the present
day makes for exciting reading. . . . Accessible and enjoyable, even for those
among us who tend generally to be able to appreciate the artistic side of life
more than the scientific. . . . Highly recommended."---Book Pleasures,
"Written in the alert and attractive style characteristic to all popular
writings of the author, [Finding Fibonacci] will attract a large audience
interested to know the story of this genius of the Middle Ages whose books
influenced so much development of the modern Western civilization up to our
days."---S. Cobzas, Studia Mathematica
"One is left with a deep appreciation of not only Fibonacci's dedication to
making his discovery accessible but also Devlin’s efforts in illuminating for us
the far-reaching impact of the genius that was Fibonacci."---Mary Goetting,
Mathematics Teacher
"[A] very readable book . . . the excitement of the quest . . . comes over in a
vivid and at times moving way."---Owen Toller, Mathematical Gazette
"This book is a memoir or research in an honest attempt to discover the life and
legacy of the medieval mathematician Leonardo Pisano (Leonardo of Pisa),
popularly known as Fibonacci, whose mammoth book Liber Abaci has quite literally
affected the lives of everyone alive today."---Keith Devlin, Mathematics Today
--This text refers to the hardcover edition.
REVIEW
"A charmingly personal account of Keith Devlin's long quixotic search to
understand the man, Leonardo Bonacci, better known as Fibonacci, as well as the
thirteenth-century mathematician's surprisingly pervasive influence."―John Allen
Paulos, author of Innumeracy and A Numerate Life
"Lovers of history, travel, and mathematics alike will relish this journey
through time to ancient worlds, as master expositor Keith Devlin navigates Italy
to uncover the beginnings of modern math. Fascinating!"―Danica McKellar, New
York Times bestselling author of Math Doesn't Suck
"Though most of us only know about Leonardo of Pisa (aka Fibonacci) because of
the numbers named after him, he was in fact the Steve Jobs of the thirteenth
century who ushered in a revolution―as we learn from this fascinating book that
reads by turns as a detective novel, a moving personal journey, and a meditation
on the fate of modernity. Highly recommended to all lovers of math and
history."―Edward Frenkel, professor of mathematics at the University of
California, Berkeley, and author of Love and Math
"An unusual and fascinating personal account of a modern mathematician's quest
to separate truth from myth and show us the real ‘Fibonacci.'"―Ian Stewart,
author of Professor Stewart's Incredible Numbers
"Interesting and engaging. Devlin succeeds in making the reader care about his
quest to understand Leonardo the person. He conveys the sense of awe and
reverence at holding in your hands a document that has come to you straight from
centuries before."―Dana Mackenzie, author of The Universe in Zero Words: The
Story of Mathematics as Told through Equations
"[A] good beach read for the nerdier among us."―Math Frolic --This text refers
to the hardcover edition.
FROM THE BACK COVER
"A charmingly personal account of Keith Devlin's long quixotic search to
understand the man, Leonardo Bonacci, better known as Fibonacci, as well as the
thirteenth-century mathematician's surprisingly pervasive influence."--John
Allen Paulos, author of Innumeracy and A Numerate Life
"Lovers of history, travel, and mathematics alike will relish this journey
through time to ancient worlds, as master expositor Keith Devlin navigates Italy
to uncover the beginnings of modern math. Fascinating!"--Danica McKellar, New
York Times bestselling author of Math Doesn't Suck
"Though most of us only know about Leonardo of Pisa (aka Fibonacci) because of
the numbers named after him, he was in fact the Steve Jobs of the thirteenth
century who ushered in a revolution—as we learn from this fascinating book that
reads by turns as a detective novel, a moving personal journey, and a meditation
on the fate of modernity. Highly recommended to all lovers of math and
history."--Edward Frenkel, professor of mathematics at the University of
California, Berkeley, and author of Love and Math
"An unusual and fascinating personal account of a modern mathematician's quest
to separate truth from myth and show us the real ‘Fibonacci.'"--Ian Stewart,
author of Professor Stewart's Incredible Numbers
"Interesting and engaging. Devlin succeeds in making the reader care about his
quest to understand Leonardo the person. He conveys the sense of awe and
reverence at holding in your hands a document that has come to you straight from
centuries before."--Dana Mackenzie, author of The Universe in Zero Words: The
Story of Mathematics as Told through Equations
"[A] good beach read for the nerdier among us."--Math Frolic
--This text refers to the hardcover edition.
ABOUT THE AUTHOR
Keith Devlin is a mathematician at Stanford University and cofounder and
president of BrainQuake, an educational technology company that creates
mathematics learning video games. His many books include The Unfinished Game:
Pascal, Fermat, and the Seventeenth-Century Letter That Made the World Modern.
He is "the Math Guy" on National Public Radio. He lives in Palo Alto,
California. --This text refers to the hardcover edition.
EXCERPT. © REPRINTED BY PERMISSION. ALL RIGHTS RESERVED.
FINDING FIBONACCI
THE QUEST TO REDISCOVER THE FORGOTTEN MATHEMATICAL GENIUS WHO CHANGED THE WORLD
By Keith Devlin
PRINCETON UNIVERSITY PRESS
Copyright © 2017 Keith Devlin
All rights reserved.
ISBN: 978-0-691-17486-0
CONTENTS
PRELUDE Sputnik and Calculus,
CHAPTER 1 The Flood Plain,
CHAPTER 2 The Manuscript,
CHAPTER 3 First Steps,
CHAPTER 4 The Statue,
CHAPTER 5 A Walk along the Pisan Riverbank,
CHAPTER 6 A Very Boring Book?,
CHAPTER 7 Franci,
CHAPTER 8 Publishing Fibonacci: From the Cloister to Amazon.com,
CHAPTER 9 Translation,
CHAPTER 10 Reading Fibonacci,
CHAPTER 11 Manuscript Hunting, Part I (Failures),
CHAPTER 12 Manuscript Hunting, Part II (Success at Last),
CHAPTER 13 The Missing Link,
CHAPTER 14 This Will Change the World,
CHAPTER 15 Leonardo and the Birth of Modern Finance,
CHAPTER 16 Reflections in a Medieval Mirror,
APPENDIX Guide to the Chapters of Liber abbaci,
BIBLIOGRAPHY,
INDEX,
CHAPTER 1
The Flood Plain
Tuscany, Italy, September 2002. Like many present-day travelers to Pisa, I took
the train from Florence — a small commuter train of four carriages pulled by a
noisy diesel locomotive, quite different from the sleek Intercity Express that
had whisked me southward from Trento. Even late in the season, the train was
crammed with tourists, many of them young people carrying backpacks. Everyone
was talking loudly to make themselves heard over the noise from the engine. In
my carriage I heard Americans, British, Australians, Germans, French,
Scandinavians, and Japanese. A port in the Roman era and a major Mediterranean
trading hub in medieval times, Pisa clearly is still an international
destination, though these days the main cargo seems to be foreign tourists.
Once the train had left Florence behind, the journey became spectacular, winding
its way through the beautiful rolling hills of the Chianti wine region. On both
sides of the railroad tracks, the steeply rising slopes were covered with an
irregular checkerboard of bright green vineyards, each one laid out with
geometric precision. Occasionally, a field would stretch right down to the side
of the tracks, giving the passengers a closer view. Now, in late summer, the
vines were heavy with the ripening purple grapes that would soon be harvested to
make the wines the region is so famous for.
Eventually, the hills gave way to a large flat plain, stretching all the way to
Pisa and beyond to the sea. There had been heavy rains just prior to my visit to
Italy, and as the train left the vineyards it began to rain once again. As the
engine slowed down to arrive at our destination, I saw that the land on both
sides of the tracks was still under a foot or more of water. The land here
floods regularly, a lasting reminder of why Pisa had become a port in the first
place: In Roman times, and earlier, this is where Pisa's harbor used to be.
By the time the train pulled up in Pisa, the rain had turned into a sustained,
heavy downpour. The small, quaint, inexpensive hotel I had booked via the
Internet was perfectly located for sightseeing, right in the center of the old
medieval city, close to the river. Unfortunately, the railway station was not —
it is a "Central Station" in name only. As I had experienced many times in New
York City, when it rains in Pisa, everyone travels by taxi. As a result, the
station taxi stand before me stood empty. I waited in line for an hour, with
only my umbrella to keep me dry, before I was finally able to secure a ride. I
soon began to wish I too had my belongings in a backpack, so I could have walked
to my destination, as many of my fellow passengers did. It was a damp end to my
journey, both literally and figuratively. Still, I was in Pisa at last, about to
take the first step in what would turn out to be a seven-year quest to piece
together the story of one of the most influential figures in human history, a
medieval mathematician who, over the years, had become something of an obsession
with me.
My visit had come about quite by chance. I had been invited to Italy to give an
address at an international conference in Rome on the newly emerging field of
mathematical cognition. I was asked to give lectures at several other
universities as well — the industrial powerhouse of Torino in the northwest, the
vacation destination Trento in the mountainous wine region in the northeast, the
ancient university town of Bologna partway from Trento to Florence, and the
spectacular Siena where, more than 20 years earlier, I had been a visiting
professor for several weeks.
I had decided to take a two-day detour to Pisa in between my lecturing
commitments in Bologna and Siena, in an effort to find out something about
Leonardo Fibonacci, a mysterious thirteenth-century mathematician who apparently
played a key role in the making of the modern world, and in whose mathematical
footsteps I had, in one important respect, been treading for the past 20 years.
Was there enough information to write a book about him? No one else had written
one, so I suspected there was not. On the other hand, that yawning gap in the
written history of science meant that Fibonacci was the most famous and
accomplished scientist never to have been the subject of a biography. I wanted
to give it a try.
My interest was certainly not that of the historian, for such I am not. I am a
mathematician. What intrigued me about Leonardo was that significant similarity
between our mathematical careers. I sensed a kindred spirit.
As I sheltered under my umbrella, waiting for a taxi, I reflected briefly on how
different my mathematical career had been from the future I had envisaged back
in 1968, when I completed my bachelor's degree at the University of London and
headed off to the University of Bristol to begin work on my doctorate.
Back then, when I was starting out, the only thing I knew about Fibonacci was
that he was the mathematician who discovered the famous Fibonacci sequence (he
didn't — I was wrong), which I knew had deep connections to human aesthetics (it
doesn't — I was wrong). It was much later that I discovered he was one of the
most influential men of all time. And that his greatness lay not in his
mathematical discoveries — though he was without doubt the strongest
mathematician of his time — but rather in his expository power. He had the
ability to take what were at the time novel and difficult mathematical ideas and
make them accessible to a wide range of people. Moreover, he had the instinct to
do it in a way that in present-day terminology would be described as a "good
marketing strategy."
As a young graduate student, my role models were not the likes of Leonardo
Fibonacci, but the mathematicians who had made major mathematical discoveries —
more recent mathematical giants such as Leonard Euler, Karl Friedrich Gauss,
Pierre De Fermat, and Kurt Gödel. Like many young people embarking on a
mathematical career, I dreamed of joining the ranks of the greatest — of proving
a major theorem or solving a difficult problem that had baffled the best minds
for decades.
Some of my contemporaries succeeded. In 1963, only a few years ahead of me, the
young American mathematician Paul Cohen solved Cantor's Continuum Problem, a
puzzle that had resisted all attempts at resolution for more than 60 years. But
as is true for the vast majority of mathematicians, eventually I had to settle
for far less.
During the course of my career, like most of the world's 25,000 professional
mathematicians listed in the International Directory of Mathematicians, I solved
a number of minor problems and proved several respectable but largely
unremarkable theorems. I taught at various universities, in Scotland, Norway,
Germany, Canada, and the United States (where I moved permanently in 1987), and
I wrote a number of textbooks for mathematicians and students. Again, these are
all fairly typical career moves for many academic mathematicians, though perhaps
I moved around more than many and ended up writing more books than most.
But along the way, almost by accident, I discovered another talent, perhaps my
true calling: an ability to explain often obscure, advanced mathematical ideas
to a general audience. I found that, through my words, I could make mathematics
come alive for others not versed in the subject.
An unplanned sequence of events resulted in my discovering this ability and
thereby embarking on a second career path as a public expositor of mathematics.
In the early 1980s, having returned to the UK after four years in Norway and
Germany, I grew increasingly frustrated by the fact that magazines and
newspapers often carried articles on science — biology, physics, chemistry, and
so on — but hardly ever on mathematics. On the few occasions when they did cover
mathematics, they did so badly, often getting the main idea entirely wrong. In
March 1983, I decided to do something about the situation, so I wrote a short
piece and sent it in to the British national newspaper the Guardian.
It was an April Fools joke, to be published on April 1. I described some
mathematics that, while true, was so counterintuitive, most readers would note
the date and assume it was a spoof — and in so doing they would fall victim to
the real joke: The article was true.
A few days later, the science editor, Anthony Tucker, phoned and informed me
that they could not publish it. "But," he said, "I like your style. You seem to
have a real knack for explaining difficult ideas in a way ordinary people can
understand."
Tucker encouraged me to try again, and my second attempt was published in the
Guardian on May 12, 1983. Several more pieces also made it into print, eliciting
some appreciative letters to the editor. As a result, when the Guardian launched
a weekly, personal computing page later that year, it included my new,
twice-monthly column Micromaths. The column ran without interruption until 1989,
when my two-year visit to Stanford University in California turned into a
permanent move to the United States.
I soon discovered that I liked my new role of "expositor." I have always been
passionately interested in all aspects of mathematics, and never liked the fact
that so many people have a completely false impression of this wonderful
subject. Most people think that mathematics is just about numbers, but that's
not true at all. Yes, numbers play an important role in the subject, but
mathematics is not about counting. It's about pattern and structure. It's about
the hidden beauty that lies just beneath the surface of the everyday world. I
relished the challenge of constantly trying to find ways to explain new
developments in advanced mathematics to the lay readers of my column. The
frequent appreciative — and occasionally baffled — letters I received from
readers further fueled my commitment.
Encouraged by the success of my column, I began writing books and articles for a
general readership, including some for the business world. I also gave lectures
to lay audiences and started to make occasional appearances on radio and
television. From 1991 to 1997, after moving to the United States in 1987, I
edited FOCUS, the monthly magazine of the Mathematical Association of America,
and since January 1996 I have written a monthly column, "Devlin's Angle," for
the MAA's Web magazine, MAA Online. (The column is now in blog format.)
Early in 1995, I got a break that led to my becoming a regular contributor to
primetime national radio in the United States, with the media identity "the Math
Guy." I got a telephone call one day from National Public Radio's Saturday
morning news magazine show Weekend Edition. The host, Scott Simon, wanted to
interview me about the solution to the 350-year-old problem known as Fermat's
Last Theorem, which became a major news story after the Princeton mathematician
Andrew Wiles had solved it a few months earlier.
Although Scott and I would not meet for many months — then as now, we record
most of our interviews with me in a studio in California and Scott at the NPR
studios in Washington, DC — we hit it off immediately over the air. Listeners
loved our intimate, humorous banter — which from the start has been completely
unrehearsed and spontaneous. Many wrote in to the program to say so. Again,
without any planning, I found I had another new role, this time a "radio
personality," appearing on the show every few weeks. Eventually, I acquired my
"stage name." The receptionist at the studio I used soon started to greet my
arrival with "It's the math guy." I mentioned this to the Weekend Edition
producer one day, and he replied, "Oh, that's what we put you down as on our
scheduling board." And so the NPR Math Guy was born.
Each new step brought me further pleasure, as more and more people came up to me
after a talk, or wrote or emailed me after reading an article I had written or
hearing me on the radio. They would tell me they found my words inspiring,
challenging, thought-provoking, or enjoyable. Parents, teachers, stay-at-home
moms, business people, and retired people would thank me for awakening in them
an interest and a new appreciation of a subject they had long ago abandoned for
being either dull and boring or beyond their understanding. I came to realize
that I was touching people's lives, opening their eyes to the marvelous world of
mathematics.
None of this was planned. I had become a "mathematics expositor" by accident.
Only after I realized I had been born with a talent that others appreciated —
and that by all accounts is fairly rare — did I begin to work on developing and
improving my "gift."
In taking mathematical ideas developed by others and explaining them in a way
that the layperson can understand, I was following in the footsteps of others
who had also made efforts to organize and communicate mathematical ideas to
people outside the discipline. Among that very tiny subgroup of mathematics
communicators, the two who I regarded as the greatest and most influential
mathematical expositors of all time are Euclid and Leonardo Fibonacci. Each
wrote a mammoth book that influenced the way mathematics developed, and with it
society as a whole.
Euclid's classic work Elements presented ancient Greek geometry and number
theory in such a well-organized and understandable way that even today some
instructors use it as a textbook. It is not known if any of the results or
proofs Euclid describes in the book are his, although it is reasonable to assume
that some are, maybe even many. What makes Elements such a great and hugely
influential work, however, is the way Euclid organized and presented the
material. He did such a good job of it that his text has formed the basis of
school geometry teaching ever since. Present-day high school geometry texts
still follow Elements fairly closely, and translations of the original remain in
print.
Because geometry was an obligatory part of the school mathematics curriculum
until a few years ago, most people have been exposed to Euclid's teaching during
their childhood, and many recognize his name and that of his great book. In
contrast, Leonardo of Pisa and his book Liber abbaci are much less well known.
Yet their impact on present-day life is far greater. Liber abbaci was the first
comprehensive book on modern practical arithmetic in the Western world. While
few of us ever use geometry, people all over the world make daily use of the
methods of arithmetic that Leonardo described in Liber abbaci.
In contrast to the widespread availability of the original Euclid's Elements,
the only version of Leonardo's Liber abbaci we can read today is a second
edition he completed in 1228, not his original 1202 text. Moreover, there is
just one translation from the original Latin, in English, published as recently
as 2002.
For all its rarity, Liber abbaci is an impressive work. Although its great fame
rests on its treatment of Hindu-Arabic arithmetic, it is a mathematically solid
book that covers not just arithmetic, but the beginnings of algebra and some
applied mathematics, all firmly based on the theoretical foundations of Euclid's
mathematics.
I will describe my own reaction on first reading Liber abbaci in my fairly
lengthy chapter 10 of this text, and, for readers who want to know more, I
provide a summary of the entire contents of Liber abbaci in the appendix. For
now, however, let me set the scene for the story I will tell by giving you the
overall flavor of Leonardo's book.
Leonardo established a range of general methods for solving arithmetical
problems (some using the geometric algebra of Book II of Elements), providing
rigorous proofs to justify the methods, in the fashion of the ancient Greeks.
In particular, he explained — and provided justification for — some
non-algebraic methods for solving problems that were well known in the medieval
world, such as the checking procedure of "casting out nines," various "rules of
proportion," and methods called "single false position" and "double false
position," none of which are taught to today's calculator-carrying students.
Indeed, these methods had fallen out of fashion by the time I learned arithmetic
in the 1950s, a decade before the arrival of the digital desk calculator! (I did
look up some of those methods when I was carrying out my Leonardo research, but
I have already forgotten what they are.)
The real impact of the book came from its examples. Leonardo included a wealth
of applications of mathematics to business and trade. These include conversions
of money, weight, and content, methods of barter, business partnerships, and
allocation of profit, alloying of money, investment of money, and simple and
compound interest.
(Continues...)Excerpted from Finding Fibonacci by Keith Devlin. Copyright © 2017
Keith Devlin. Excerpted by permission of PRINCETON UNIVERSITY PRESS.
All rights reserved. No part of this excerpt may be reproduced or reprinted
without permission in writing from the publisher.
Excerpts are provided by Dial-A-Book Inc. solely for the personal use of
visitors to this web site. --This text refers to the hardcover edition.
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PRODUCT DETAILS
* ASIN : B01M74LZYP
* Publisher : Princeton University Press; Reprint edition (March 7, 2017)
* Publication date : March 7, 2017
* Language : English
* File size : 11589 KB
* Text-to-Speech : Enabled
* Screen Reader : Supported
* Enhanced typesetting : Enabled
* X-Ray : Not Enabled
* Word Wise : Enabled
* Print length : 251 pages
* Page numbers source ISBN : 0691174865
* Lending : Not Enabled
* Best Sellers Rank: #1,241,644 in Kindle Store (See Top 100 in Kindle Store)
* #822 in Christian Papacy
* #1,061 in Biographies of Scientists
* #1,487 in Mathematics History
* Customer Reviews:
3.9 out of 5 stars 37 ratings
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ABOUT THE AUTHOR
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KEITH DEVLIN
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Dr. Keith Devlin is a mathematician at Stanford University in California. He is
a co-founder and Executive Director of the university's H-STAR institute and a
co-founder of the Stanford mediaX research network. He has written 33 books and
over 80 published research articles. His books have been awarded the Pythagoras
Prize and the Peano Prize, and his writing has earned him the Carl Sagan Award,
and the Joint Policy Board for Mathematics Communications Award. In 2003, he was
recognized by the California State Assembly for his "innovative work and
longtime service in the field of mathematics and its relation to logic and
linguistics." He is "the Math Guy" on National Public Radio. (Archived at
http://www.stanford.edu/~kdevlin/MathGuy.html.)
He is a World Economic Forum Fellow, a Fellow of the American Association for
the Advancement of Science, and a Fellow of the American Mathematical Society.
His current research is focused on the use of different media to teach and
communicate mathematics to diverse audiences. In this connection, he is a
co-founder and Chief Scientist of an educational technology company called
BrainQuake, that designs and build mathematics learning video games. He also
works on the design of information/reasoning systems for intelligence analysis.
Other research interests include: theory of information, models of reasoning,
applications of mathematical techniques in the study of communication, and
mathematical cognition.
He writes a monthly column for the Mathematical Association of America,
"Devlin's Angle": http://www.maa.org/devlin/devangle.html; maintains a blog:
https://profkeithdevlin.org; and writes articles for the Huffington Post:
http://www.huffingtonpost.com/author/keithdevlin-162
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4.0 out of 5 stars 'Finding Fibonacci' left me wanting to learn more math!
Reviewed in the United States on September 10, 2019
In 'Finding Fibonacci,' Dr. Keith Devin recounts his ten-year search for answers
regarding the mysterious life of Leonardo of Pisa—the medieval mathematician
more commonly known as "Fibonacci." So little is known about the person whose
1202 work 'Liber Abaci' revolutionized Western mathematics and commerce, making
Leonardo of Pisa one of the most consequential yet enigmatic figures in
European history. While the finer details of Fibonacci's life are likely lost to
history, Dr. Devin does an excellent job at separating facts from fiction while
simultaneously conveying his passion for mathematics and where Leonardo of Pisa
figures into it.By the time you finish this book, you might find yourself
referring to Fibonacci as "the other Leonardo." Dr. Devin convincingly presents
'Liber Abaci' as a groundbreaking event in history that did for mathematics what
the Apple Mac did for computers. I found myself working out some of the
equations Leonardo of Pisa laid out in 'Liber Abaci' with more excitement than
I ever experienced in the classroom learning algebra. I even found myself
flipping through a book on calculus with renewed interest after my reading.
That's right, 'Finding Fibonacci' left me wanting to learn more math!As some
reviewers have noted, 'Finding Fibonacci' repeats itself in places. For this, I
am deducting a star from my review for a final score. I considered going with a
3.5-star review, but the truth is this book renewed my interest in mathematics
more than anything I have read in years. That is a rare achievement, and one
that I am grateful for. I have already recommended this book to my father, a
retired engineer, and plan on sharing Dr. Devin's education on Fibonacci with
others.Good book. 4 stars.
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Hormone Doc
3.0 out of 5 stars A thin book about a heavy subject
Reviewed in the United States on July 31, 2017
Verified Purchase
Keith Devlin has written many books about math and several about Leonardo of
Pisa aka Fibonacci. There is only scant actual information about the man. The
book is about Devlin's various trips to Italy to do research. Although he makes
a number of important points and has significant insights, I would have been
just as happy if he did it in fewer pages. He writes about his missing buses
because of Italian schedules and difficulties with librarians. Some of this, I
felt, was to fill pages to justify the price of the hard cover book.
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The home of Mary and Joseph
4.0 out of 5 stars Finding Fibonacci -- A pleasant read
Reviewed in the United States on August 2, 2017
Verified Purchase
The book is not a mathematics book, but is a book about the author's quest to
find out something about Fibonacci (Actually this is only one of his three
names.). It is more of a memoir of his research. He did say a lot about the book
Liber Abbaci which was written by Fibonacci. The author considers this work to
be of huge significance in western culture, even though most have never heard of
it. There are a only few copies that exist and Devlin documents his search for
them and his research into them. The book (Liber Abbaci) was the basis of
commerce calculations in the western and Arab world. Such things as the concept
of algorithm and the 10 Arabic digits were promulgated by Fibonacci in his book.
Finding Fibonacci was a good read.
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Ron book
5.0 out of 5 stars Magnifically written story of the introduction of ‘arabic’
numbers to our world!
Reviewed in the United States on July 20, 2017
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Mr.Devlin uncovers a ‘closely held secret’: Fibonacci was the mathematician that
introduced the numbers, or digits, we presently use. And this was done in the
XIII Century! Few people were aware of the importance of Fibonacci ‘discovery’!
Thankfully, Devlin unveils this phenomenal character, in a riveting story, with
a lot of details, without abusing the lay reader with math formulas! A must
read!
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retd_engr
4.0 out of 5 stars Book about a book
Reviewed in the United States on December 17, 2020
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This author wrote a biography about Fibonacci. This book is about what he went
through to write that book.
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louis
3.0 out of 5 stars T is more to Leonardo of Pisa ( Fibonacci) then a sequence of
numbers......like our number System itself!!
Reviewed in the United States on November 6, 2017
Verified Purchase
There was less there than what the title seem to promise. He could have and
should have included a bit more history of the mathematics that was being
practised at the time. There could have been a lot more examples of where the
sequence and numbers appears in the living world and a bit more speculation and
discussion of the contributions of the Islamic world. Indeed where and how did
the islamic world get there numerical system from india?
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Hg
5.0 out of 5 stars Very well researched history of Leonardo (called Fibonacci)
Reviewed in the United States on September 13, 2017
Verified Purchase
Keith Devlin offers a detailed history of Leonardo (his real name)'s discoveries
in mathematics that made our world's trade grow exponentially. Fascinating
stories of how Devlin uncovered how Leonardo's writings had the huge influence
on our knowledge and use of mathematics. This and other books about Fibonacci by
Devlin are giving us a broader picture of this giant whose memory was almost
erased.
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Amazon Customer
3.0 out of 5 stars This book is really about the author, Keith Devlin ...
Reviewed in the United States on July 24, 2017
Verified Purchase
This book is really about the author, Keith Devlin, more than about Fibonacci or
his work. It tells about how the author became a writer popularising mathematics
in the mass media and also tells a lot of personal stories about how he spent a
number of years off and on researching a little about Fibonacci. It is primarily
a travel book with Fibonacci as a theme.
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Ted Markowitz
2.0 out of 5 stars Not as interesting as it could have been, alas ...
Reviewed in the United States on August 30, 2017
Verified Purchase
Not as interesting as it could have been, alas. Wish there was more about the
mathematics and Fibonnaci and less about the author.
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Camillo Bozzolo
5.0 out of 5 stars sheds good light on one of the most important figures that
...
Reviewed in the United Kingdom on August 1, 2017
Verified Purchase
well written, sheds good light on one of the most important figures that helped
to develop modern business in the West.
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Client d'Amazon
1.0 out of 5 stars very bad book
Reviewed in Italy on May 19, 2017
Verified Purchase
Never says anything new except his vanity to be new without being new!
Terrible litterature - repetitions are half the book - more than 100 times he
repeats that Fibonacci wrote the book that would change the world!
the index is full of missing names (Frederic II)
This author is so happy with himself that he explains how he goes to sleep or
other banalities irrelevant to the subject
bad scinece, bad litterature, bad english, stupid comparisons...
I will complain to Sientific American where i found the recommendation of this
book.
Good for airport or train station news stands - not for people interested in
science, philosophie, technonlogy, and certainly not litterature.
Typical commercial book -bu published by a University Press !!!
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Fernando Arthur Tollendal Pacheco
5.0 out of 5 stars Obra importantíssima sobre Leonardo de Pisa
Reviewed in Brazil on July 18, 2017
Verified Purchase
Teve apenas duas edições. há novecentos anos. No entanto foi o livro que mudou
radicalmente a cultura ocidental. Aos que se ibnteressarem pelo assunto,
recomendo também "Finding Fibonacci", trabalho recente de Keith Devlin.
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Urs
2.0 out of 5 stars Von Nichts kommt Nichts
Reviewed in Germany on May 9, 2017
Verified Purchase
Der Autor schreibt ja selber, das von Fubonacci nichts überliefert ist. Da hätte
er besser kein Buch gamacht, als diese Erkenntnis noch breitzuwalzen.
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