Stephen K. Hayes is one of the most influential figures in martial arts history. In fact, he is the first Western martial artist to study the secrets of the ninja art. Taught in Japan by Masaaki Hatsumi, 34th generation of the art, After his study, Hayes was the first to bring the art of the ninja to America. A legitimate ninja, he not only opened the first school in the West to teach ninja, but He also holds a series of seminar camps to promote the art. Hayes has become the voice of ninja as the arts’ biggest advocate. He has graced numerous covers, produced a series of books on the art, hosted a multitude of seminars, and has done more for the real ninja art than anyone in the world.