Kathy Sierra (born June 19, 1957, Fresno, California) is a programming instructor and game developer. Sierra is the co-creator of the "Head First" series of books on computer programming, along with her partner, Bert Bates. The series, which began with "Head First Java" in 2003, takes an unorthodox, visually intensive approach to the process of teaching programming. Wikipedia
The definitive Wikipedia entry for Kathy Sierra. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Kathy_Sierra