Learn the ABCs of Brazilian Jiu-Jitsu; 26 colour-illustrations of cats demonstrating techniques and positions. armbar brabo choke closed guard d'arce ezekiel choke figure-four armlock gogoplata half guard inside trip japanese necktie kimura lockdown mount north-south choke omoplata peruvian necktie quarter nelson rear-naked choke side-control triangle choke underhook von flue choke whizzer x-guard yoga z-guard