The title of this book is "Jeet Kune Do Principles". Principles and concepts that ALL Martial Artists - regardless of style - can use in their daily training. In fact, most of these principles are used everyday by all martial artists around the world, and most like speed and timing, are not unique to the art of Jeet Kune Do. The purpose of this book is to explain some of these principles and share some ideas on how to train for them. Some are principles like the use of distance and broken rhythm in combat, while others are sayings on combat by the founder of JKD Bruce Lee that perfectly illustrate a principle or a fighting idea. To understand the root, you need to understand the principles. The principles of Jeet Kune Do are universal, but unfortunately these principles are no longer stressed as much anymore, because there is too much focus on "technique" alone, and seeing how many techniques you can "add" to your toolbox. The purpose of this work is to discuss some of the principles that the art of JKD focuses on, and to give you some examples to put those principles in action. The hope of this book is that you do the same with the main techniques you either are studying or teaching - regardless of your style.