Welcome to the XML Bible. After reading this book I hope you’ll agree with me that XML is the most exciting development on the Internet since Java, and that it makes Web site development easier, more productive, and more fun. This book is your introduction to the exciting and fast growing world of XML. In this book, you’ll learn how to write documents in XML and how to use style sheets to convert those documents into HTML so legacy browsers can read them. You’ll also learn how to use document type definitions (DTDs) to describe and validate documents. This will become increasingly important as more and more. | XML Bible Elliotte Rusty Harold IDG BOOKS WORLDWIDE IDG Books Worldwide Inc. An International Data Group Company Foster City CA 4- Chicago IL 4 Indianapolis IN 4 New York NY XML Bible Published by IDG Books Worldwide Inc. An International Data Group Company 919 E. Hillsdale Blvd. Suite 400 Foster City CA 94404 IDG Books Worldwide Web site Copyright 1999 IDG Books Worldwide Inc. All rights reserved. No part of this book including interior design cover design and icons may be reproduced or transmitted in any form by any means electronic photocopying recording or otherwise without the prior written permission of the publisher. ISBN 0-7645-3236-7 Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 1O QV QY ZZ FC Distributed in the United States by IDG Books Worldwide Inc. Distributed by CDG Books Canada Inc. for Canada by Transworld Publishers Limited in the United Kingdom by IDG Norge Books for Norway by IDG Sweden Books for Sweden by IDG Books Australia Publishing Corporation Pty. Ltd. for Australia and New Zealand by TransQuest Publishers Pte Ltd. for Singapore Malaysia Thailand Indonesia and Hong Kong by Gotop Information Inc. for Taiwan by ICG Muse Inc. for Japan by Norma Comunicaciones . for Colombia by Intersoft for South Africa by Eyrolles for France by International Thomson Publishing for Germany Austria and Switzerland by Distribuidora Cuspide for Argentina by Livraria Cultura for Brazil by Ediciones ZETA . Ltda. for Peru by WS Computer Publishing Corporation Inc. for the Philippines by Contemporanea de Ediciones for Venezuela by Express Computer Distributors for the Caribbean and West Indies by Micronesia Media Distributor Inc. for Micronesia by Grupo Editorial Norma . for Guatemala by Chips Computadoras . de . for Mexico by Editorial Norma de Panama . for Panama by American Bookshops for Finland. Authorized Sales Agent Anthony Rudkin Associates for the Middle East and North Africa. For general information on IDG