Nearly five years after the first edition of this book exploded on to the market, noted software engineering guru and the father of Extreme Programming (XP) Kent Beck provides a fresh look at this controversial topic. XP remains the most popular agile methodology in software development, and many believe it is ideal for small to mid-size development organizations. However, XP is not without its detractors. The goal of the book remains to help programmers and teams decide if XP is the right path to pursue. The book offers advice, but does not provide a prescriptive, how to style format. This Fifth Anniversary Edition enhances the full knowledge of XP and gives both the advocate and skeptic of XP full detail to move forward with an informed opinion.