Kent Beck, one of the software industry's most innovative and recognized leaders, is known for challenging software engineering dogma and advocating for concepts such as patterns, test-driven development, and Extreme Programming. He is the author of many Addison-Wesley textbooks, including Test-Driven Development (2003) and, with Cynthia Andres, Extreme Programming Explained, Second Edition (2005). He is currently involved with Three Rivers Institute and Agitar Software.