Excelsior - Jiu-Jitsu is a lifelong journey of learning, discipline, and personal growth y Jiu-Jitsu Training Journal: A Blue Belt Study Guide With Propts And... Jiu Jitsu And The Ego : Matakas, Chris This book will help you navigate the mental hurdles of Jiu Jitsu. BJJ Black Belt Chris Matakas has used this framework with hundreds of students in his academy, as well as thousands of readers across the world