Matthew B. Doar began writing code as a child in Yorkshire in the late 1970s, studied Engineering and then Computer Science at the University of Cambridge, and finished up with a Ph.D. in computer networking. He has been a professional software developer for over ten years at a number of different companies, writing C, C++ and Java code for large projects and tools. He also wrote JDiff, an open source tool for comparing the Java APIs of different versions of large projects. Matt currently works near San Jose, CA as a toolsmith by day. By night, he has learned to play the clarinet, and accidentally delivered his own son. He is the author of Practical Development Environments. More technical information and contact details are available at Matt's web site.