About the Author

Kent Beck is a programmer, creator of Extreme Programming, pioneer of software patterns, co-author of JUnit, rediscoverer of Test-Driven Development, 3X: Explore/Expand/Extract and now the *Tidy First?* series of books on software design. Beck is also alphabetically the first signatory of the Agile Manifesto. He lives in San Francisco, California and works for Studio Beck, teaching skills helping geeks feel safe in the world.