Kevlin is an independent consultant and trainer. His development interests are in patterns, programming, practice and process. He has been a columnist for various magazines and web sites, including Better Software, The Register, Application Development Advisor, Java Report and the C/C++ Users Journal. Kevlin is co–author of A Pattern Language for Distributed Computing and On Patterns and Pattern Languages, two volumes in the Pattern–Oriented Software Architecture series. He is also editor of the 97 Things Every Programmer Should Know site and book.