Claiming that the belt is just an accessory, Ultimate Fighting Championship (UFC) Lightweight Champion B.J. Penn explains Why I Fight in this honest, intimate, and fascinating memoir. Written with David Weintraub, Why I Fight is an unforgettable portrait of one of the top and most recognizable mixed martial artists in the UFC and an up-close look at one of the most exciting and fastest growing sports in the world. UFC and Jiu-Jitsu aficionadosand fans of Iceman, A Fighters Heart, and Bruce Lees classic The Tao of Jeet Kun Dowill want to explore Why I Fight.