Extreme Programming (XP)

• Extreme Programming: A Gentle Introduction - by Don Wells. A good place to get started.

• Extreme Programming: What Is It And How Do You Use It? - by Andrew Powell-Morse. Overview of Extreme Programming, the values and principles behind it and what specific procedures to implement when adopting it.

• Extreme Programming; Tips & Advantages - by Ekaterina Novoseltseva. Overview of the rules and practices during the phases of planning, designing, coding, testing, and listening.

Books

• Scrum and XP from the Trenches - by Henrik Kniberg. A detailed overview of how a medium-sized company implemented Scrum and XP. Lots of practical tips.