Who has not heard of the famous ninja? Although originating in Japan he is now a worldwide phenomenon. Yet the confusion brought about by the controversies surrounding him has also resulted in many errors and fabrications, depriving the West of the historical truth. Corrected and supervised by Master Jinichi Kawakami, the last known heir of the traditions of ninjutsu, this book will restore the balance by offering the public a serious and objective approach to what really is ninjutsu; namely a historical and cultural tradition of Japan, as misunderstood as it is authentic!