BJ Penn- MMA Welterweight World Champion, MMA Lightweight World Champion, the only non-Brazilian to win the Brazilian Jiu-Jitsu World Championships, the fighting phenomenon who choked out UFC Welterweight Champion, Matt Hughes in the first round- has defeated the best and proven to be one of the most technical fighters in the world today. In Mixed Martial Arts: The Book of Knowledge, Penn divulges his revolutionary system of fighting that teaches you how to mix striking with takedowns, ground and pound an opponent into submission, fight against the cage, and formulate strategies based on your personal attributes. Whether you’re a striker looking to improve upon your ground game, a grappler looking to improve upon your striking, a beginner starting out in the sport, or a seasoned MMA veteran, this book is for you. Nothing has been overlooked, and nothing has been left out. In Mixed Martial Arts: The Book of Knowledge, Penn unleashes the knowledge that has made him one of the most feared and decorated fighters in the world.