The Triangle by Rigan Machado is the only authoritative book on the most widely used submission in the Brazilian Jiu-Jitsu arsenal. With this book, a 2-hour DVD instructional accompanies this unique instructional. Learn from the direct descendant of the Gracies on how to submit the opponent from all different positions - from the guard, side control, back, half-guard, and more. This move will increase your game to much higher levels.