All of the tactics Saburo teaches to his son are drawn from the Shinobi Hiden, the most famous of the "ninja scrolls" written by Hattori Hanzo, general to the warlord Tokugawa Ieyasu and one of the most famous warriors in Japan. These scrolls provided practical instruction for professional ninja, but they also provide insightful theories of social relationships and human interaction, studying the nature of deception, falsehood, and self-protection. An extensive supplementary section written by Antony Cummins provides fascinating details on these scrolls and their practical lessons. Accessible, insightful, and exciting, Secrets of the Ninja is the perfect introduction to the world of samurai and shinobi warfare.