Ninjutsu is the most renowned and misunderstood of all traditional martial arts. The long history of ninjutsu is often murky; surrounded by mystery and secrecy. Here, for the first time, is a factual look at the entire art of ninjutsu, including emergence of the ninja warriors and philosophy in feudal Japan. This ninja book includes studies of ninjutsu history, philosophy, wisdom, and presents a wide range of information from authors, historians, chronicles and scrolls in order to foster a deep understanding of this "shadowy" art. This brief book will cover the following topics and In this first volume of the Arcanum of Ninja Tactics, author Mark Steven Grove, founder of the Kurai Kotori system of Gendai Ninjutsu, focuses on history, clan hierarchy, ranks, and the many arts contained within Kurai Kotori Tradition. He also explains proper etiquette, describes the Ninja's virtues, laws, and doctrines, delves into unique philosophies, and reveals the methods of physical, mental, and spiritual preparation for one who has chosen to follow the path of the Shadow Warrior.