"Modesty limits what we can say here. Unquestionably, however, this is the finest book so far by these three authors. XP Installed addresses the practical issues of running an XP project. Highly recommended, of course." - www.xpprogramming.com
"This is the thickest book on XP to date. Ron Jefferies is very well known in the XP community." --Javamug.org, March 2001
"This book can be read alone although it is better suited as a companion to Extreme Programming Explained." --ambysoft.com, May 2001
"Now consider buying the book… whether you are a devotee of XP, a newcomer, a curious outsider or certain this is a load of rubbish, I think reading this book will be both a pleasure and instructive." -Accu.org