A book critiquing XP. See http://www.softwarereality.com/ExtremeProgramming.jsp for the book's home page and some papers also critiquing XP, and http://books.slashdot.org/article.pl?sid=03/10/01/2255221 for the Slashdot discussion.
Also see ExtremeProgrammingRefactored and ExtremeProgrammingRefactoredBook.
Also see CritiqueOfXp.
As I commented on Slashdot (http://books.slashdot.org/comments.pl?sid=80729&cid=7154845), I don't think the reviewer was appropriate to review this book. -- EarleMartin