The thing that makes me most wary about XP is its origins. They developed XP practices while working on the Chrysler Corporation Compensation System, which was eventually scrapped in an unfinished state after 5 years.

However, XP is touted to be a system of practices to enable people to get software created on time and under budget that is more adaptable. The skeptic in me just screams, "But your first big test case failed on all those accounts. How can you recommend these practices when, in practice, they didn't work?"

Also: The 48 Laws of Power read more like the 48 Laws of Douchebaggery.