Kent Beck, one of the software industry's most creative and acclaimed leaders, consistently challenges software engineering dogma and promotes ideas like patterns, test-driven development, and Extreme Programming. Currently affiliated with Three Rivers Institute and Agitar Software, he is the author of many Addison-Wesley titles, including "Test-Driven Development" (2003) and, with Cynthia Andres, "Extreme Programming Explained, Second Edition" (2005).