The Way of the Ninja will help widen readers' perceptions and deepen their understanding of two essential principles. One is that Ninjutsu is the very backbone of the martial arts; the other, that Ninjutsu reveals their true spiritual significance.",,,,"Discussing the philosophy of Ninjutsu, including apparel, weaponry, and training techniques, this is the definitive book on the subject from the most famous Ninja grandmaster in the world. 450 photos.