Jeet Kune Do Principles for All Martial Artists by renown JKD instructor, Tim Tackett. 
This book explains common martial arts principles like speed and timing, use of distance, and broken rhythm in combat. Though not unique to Jeet Kune Do, Tackett utilizes his JKD background, to breakdown these principles so the reader can understand them through the combat perspective of Bruce Lee's unique style.  The author feels the principles are overlooked as too much focus is placed on "techniques" and seeing how many techniques you can "add" to your toolbox. Instead, Tackett focuses on some of the principles that Jeet Kune Do focuses on. By giving examples of those principles in action, he hopes the reader can utilize this with other techniques, regardless of the styles.  7x10. Paperback. 208 pages.