Cover: Illustration to Luca Pacioli’s De divina proportione, Leonardo da Vinci, c. 1497 (Biblioteca Ambrosiana, Milan)

For the first Abbeville Press edition

Design: Gérard Prosper

Cover design: Julietta Cheung

Production editor: Ashley Benning

Production manager: Louise Kurtz

For the second edition

Editor: David Fabricant

Editorial consultant: Sarah McFadden

Production editor: Ashley Benning

Composition: Ada Rodriguez

Cover design: Misha Beletsky

Production manager: Louise Kurtz

The first edition of this book was published in paperback in 1999 by the United Nations Educational, Scientific and Cultural Organization, 7, place de Fontenoy, 75352 Paris 07 SP, France, and in hardcover in 2001 by Abbeville Press, 137 Varick Street, New York, NY 10013, USA.

Copyright © 1999, 2015 Eliane Strosberg/UNESCO. All rights reserved under international copyright conventions. No part of this book may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information retrieval system, without permission in writing from the publisher. Inquiries should be addressed to Abbeville Press, 137 Varick Street, New York, NY 10013, or e-mailed to rights@abbeville.com.

The author is responsible for the choice and the presentation of the facts contained in this book and for the opinions expressed therein, which are not necessarily those of UNESCO and do not commit the Organization. The designations employed and the presentation of material throughout this publication do not imply the expression of any opinion whatsoever on the part of UNESCO concerning the legal status of any country, territory, city or area of its authorities, or concerning the delimitation of its frontiers or boundaries.

First digital edition: May 2015

ISBN 978-0-7892-6056-7

Library of Congress Cataloging-in-Publication Data for the print edition of this book is available upon request.

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