Foot Lock Seminar/Song Won-jae

Comprehensive Guide to Leglocks for Jiu-Jitsu by Takuma Sudo

Heel Hook Encyclopedia by Yuki Takahashi

Fundamental Leg Lock Drills by Yuki Takahashi

Leg Lock Seminar by Takuma Sudo

Pancraseism Submission Offense and Defense by Satoru Kitaoka

K-Guard & Heel Hook Seminar by Toshiyasu Sagae

Advanced Leg Lock Drills by Yuki Takahashi

Fundamental Leg Lock Drills by Yuki Takahashi

Pancraseism Submission Offense by Kitaoka Satoru