Ron Collins is a former U.S. Army Infantryman, Teamleader and Hand-to-Hand Combat Instructor. He started Shadow Warrior Press to publish books on Martial Arts, Self-defense, Survival and, Military Tactics. Also known as Sensei Ron Collins, he advocated a 21st Century approach to Ninjutsu combining Ninjutsu with modern military tactics to create Black Dragon Ninjitsu as a modern Combat-Intelligence-Survival system using modern firearms and technology mixed with primitive survival skills and traditional weapons. Several books on this list have been published by Ron Collins via Shadow Warrior Press (shadowwarriorpess.net).