About the Author

Masaaki Hatsumi was born in 1931. After progressing through various martial arts, he found his life's mentor, Takamatsu Toshitsugu, and studied under him for the next fifteen years, becoming the 34th Grandmaster of Togakure-ryu Ninjutsu and eight other arts, which he unified into the Bujinkan system. While travelling the world, teaching thousands of individual students as well as law enforcement agencies, he received numerous accolades from politicians and spiritual leaders of many nationalities.