Jeet Kune Do is a modern system of self-defence based on the teachings and philosophy of Bruce Lee, the King of Kung Fu.JKD is built on Simplicity, Directness, Efficiency and Speed. It encapsulates all four fighting distances (Kicks, Boxing, Close Combat and Ground Combat) and uses specific Strategies, Concepts and Principles.JKD is constantly developing and encompasses the dangers of modern life, so that, after the early demise of its founder, it lives on through his friend and heir Dan Inosanto.This book serves to teach from level 1 to 3, although it introduces other developing areas. It is useful for any interested reader, who is involved in understanding a realistic method of self defence developed by Bruce Lee. It also serves as a support for every sportsperson and Martial Artist. Style is totally irrelevant, as Jeet Kune Do can be used for or against any style, freely using the motto "using no way as a way". "Having no limitation as limitation" Bruce Lee.

Ralph Fischer:Ralph Fischer is the owner and head coach of the Fischer Sports Academy/M.A.A.F. Schwenningen and has been practicing various martial arts and martial arts systems for over 40 years. He began his martial arts training at the age of 10 with western wrestling. After just 2 years of training, he was committed to the second Bundesliga by AB-Aichhalden and signed. Among other things, he also learned Wing Tsun Kung Fu for 3.5 years up to the advanced level. But he also occupied himself with boxing, kickboxing, Ju.Jutsu, Judo and Karate for a while until he found his way to Jeet Kune Do and Inosanto Kali. He is a qualified sports teacher and grandmaster in kickboxing (6th Dan) and holds several instructor and examiner licenses for Jeet Kune Do, Inosanto-Kali, Brazilian Ji-Jitsu, kickboxing and MMA and is authorized to train kickboxing and MMA teachers himself. Since 2013 he has held the positions of sports director and national trainer for MMA and grappling. In his competitive career, where he fought over 350 fights in wrestling and kickboxing, he was able to win several national and international titles. He has also successfully participated in three world records. In 2009 he was voted Instructor of the Year by an international martial arts magazine and was featured in an international book with an action trading card and was inducted into the Hall of Fame. In 2010 he was again awarded the Hall of Fame induction for his 30 years of service as a competitor and coach. In 2013, he was voted Instructor of the Year as a Martial Arts Ambassador by Europe's most renowned martial arts hall of fame, the Munich Hall of Honor, and was honored along with Cynthia (Lady Dragon) Rothrock.