Five Lessons You Should Learn from Extreme Programming
http://www.onlamp.com/pub/a/onlamp/2003/07/31/extremeprogramming.html

O'Reilly and Associates
2004

Abstract:

Extreme Programming (XP) is yet another popular idea gaining press. It adapts the best ideas from the past decades of software development. Whether or not you adopt XP, it's worth considering what XP teaches.