17 books
Japanese Sword Fighting
The Way of the Ninja
The Ninja Fighting Way
The Complete Ninja
Tetsuzan
Essence Of Budo, The: The Secret Teachings Of The Grandmaster
Unarmed Fighting Techniques Of The Samurai
Art Of Japanese Sword Fighting, The: Secrets Of The Samurai
Advanced Stick Fighting
Way Of The Ninja, The: Secret Techniques
Secrets from the Ninja Grandmaster
Understand? Good Play!
Essence of Ninjutsu
Stick Fighting: Techniques Of Self-defense
The Grandmaster's Book of Ninja Training
Ninjutsu
Stick Fighting