Kent Beck is the founder and director of Three Rivers Institute (TRI). He has pioneered patterns for software development, the XUnit family of test frameworks, the HotDraw drawing editor framework, CRC cards, refactoring, and most recently eXtreme Programming (XP). He is the author of Extreme Programming Explained, Planning Extreme Programming, and The Smalltalk Best Practice Patterns. He lives on 20 acres in rural southern Oregon with his wife, five children, four dogs, two sheep, and a variable number of domestic fowl.