Jonathan S. Harbour has been programming video games since the 1980s. His first game system was an Atari 2600, which he disassembled on the floor of his room as a kid. He has written on numerous subjects such as C++, C#, Basic, Java, DirectX, Allegro, Lua, DarkBasic, Pocket PC, and game consoles. He is the author of the recent books Beginning Java SE 6 Game Programming, Third Edition; Visual Basic Game Programming for Teens, Third Edition; XNA Game Studio 4.0 for Xbox 360 Developers; and Multi-Threaded Game Engine Design. He holds a master’s degree in Information Systems Management. Visit his web log and game-development forum at www.jharbour.com.