One of the most successful and active members of the world-famous Gracie clan, Renzo Gracie has spent almost 30 years training in Brazilian jujitsu. Competing at the highest levels of mixed martial arts (MMA), grappling, and no-holds-barred (NHB) events, he has won the Brazilian jujitsu national title twice, the World Combat Championships (MMA event), and the martial arts reality series superfight. He is also a two-time winner of the world submission grappling championship (held annually in Abu Dhabi) and a multiple winner in Japan's premier MMA venue, PRIDE.
Gracie has instructed many current UFC competitors and students who have gone on to become world Brazilian jujitsu champions, PRIDE champions, and Pan American Games champions. His New York City academy is one of the largest and most popular in the United States. Gracie continues to teach, train, and compete throughout the world. He resides in New York City.
An instructor at the Gracie school of Jujitsu in New York, John Danaher has been Renzo's training partner for several years. He holds a PhD from Columbia University and has written another book, Brazilian Jujitsu: Theory and Technique, with Renzo and his cousin Royler Gracie. Danaher has the distinction of being involved with the highest authorities in the sport and the formal writing skills to convey it. He resides in New York City.