This new pocket guide serves as a clear-cut introduction to Extreme Programming by summarizing the goals, rules, and general philosophy of XP in a short, concise manner. Programmers will quickly come up to speed on why and how they can effectively use this deliberate and disciplined approach to software development for large-scale business applications. The book describes the idea of the "feedback loop" and the way XP features complement each other, such as the need for constant testing, having programmers work in pairs, inviting customer input, and the communal ownership of code. With the Extreme Programming Pocket Guide, programmers will understand how XP can improve their code and actually make programming much more fun.