If you are a student of jujitsu, judo, aikido, or karate, or a fan of the martial arts, this book by George Kirby will help you connect the dots between concepts and techniques. It deals with the theory and application of circular movement to redirect an opponent's attack quickly and effectively with minimal effort on your part. You will learn how to use an opponent's momentum against him in devastating fashion through appropriate application of his and your "ki" (energy), "kuzushi" (off-balancing) and proper positioning of your "saiki tanden" (center). Maximizing the elements of circular movement in using an opponent's energy against him results in fast and effective control during an attack.