Marcelo Garcia, winner of five Brazilian Jiu-Jitsu world championships and a man many feel is the best pound-for-pound submission grappler of all time, unveils the secrets behind the most effective guard system in existence - The X-Guard. Unlike most jiu-jitsu instructional books, Garcia leaves no stone unturned. Not only does he show you how to sweep your opponent using the X-Guard from nearly every control position, he shows you how to do it both with a gi and without. Covering everything from grips to timing, this book will be a saviour to anyone wishing to compete in jiu-jitsu tournaments, no-gi grappling competition, or mixed martial arts.