Head First PMP® by Jennifer Greene, PMP and Andrew Stellman, PMP Copyright © 2007 O'Reilly Media, Inc. All rights reserved. Printed in the United States of America. Published by O'Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472. O'Reilly Media books may be purchased for educational, business, or sales promotional use. Online editions are also available for most titles (safari.oreilly.com). For more information, contact our corporate/institutional sales department: (800) 998-9938 or corporate@oreilly.com. Series Creators: Series Editor: Acquisitions Editor: Design Editor: Cover Designers: Production Editor: Indexer: Page Viewers: Printing History: March 2007: First Edition. Kathy Sierra, Bert Bates Brett D. McLaughlin Mary O'Brien Louise Barr Louise Barr, Steve Fehler Sanders Kleinfeld Julie Hawks Quentin the whippet and Tequila the pomeranian The O'Reilly logo is a registered trademark of O'Reilly Media, Inc. The Head First series designations, Head First PMP®, and related trade dress are trademarks of O'Reilly Media, Inc. PMP and PMBOK are registered marks of Project Management Institute, Inc. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and O'Reilly Media, Inc., was aware of a trademark claim, the designations have been printed in caps or initial caps. While every precaution has been taken in the preparation of this book, the publisher and the authors assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. No dogs, rabbits, or bears were harmed in the making of this book. Okay, maybe one bear... but he'll get over it. ISBN: 978-0-596-10234-0 [M] [7/08]