- Paperback: 224 pages
- Publisher: Addison-Wesley Professional; 2 edition (November 26, 2004)
- Language: English
- ISBN-10: 0321278658
- ISBN-13: 978-0321278654
The foundation book on XP by it's founder.
If you can get a copy of the 1st edition of this book, get it and read it. The second edition is much more balanced, but the first edition is much more interesting and insightful.