Andy Hunt & Venkat Subramaniam 
Practices of an Agile Developer [PDF ebook] 
Working in the Real World

These are the proven, effective agile practices that will make you a better developer. You’ll learn pragmatic ways of approaching the development process and your personal coding techniques. You’ll learn about your own attitudes, issues with working on a team, and how to best manage your learning, all in an iterative, incremental, agile style. You’ll see how to apply each practice, and what benefits you can expect. Bottom line: This book will make you a better developer.