Independently published Zen Jiu Jitsu: The 30 Day Program to improve Your Game 1000%

Zen Jiu Jitsu: The 30 Day Program to improve Your Game 1000%

Zen Jiu Jitsu - White to Blue: Volume 3

Zen Jiu Jitsu - Human Chess: High Percentage Strategies and Concepts for Beginners and Advanced Students