The 1985 paperback "Tonfa: Karate Weapon of Self-Defense" by Fumio Demura is a valuable resource for those interested in martial arts and self-defense. This book, published by Black Belt Communications, Incorporated, provides insights and techniques for using the tonfa as a weapon of self-defense. With illustrations and written in English, this trade paperback is a practical guide for individuals looking to enhance their skills in karate and self-defense. Demura's expertise in the subject matter makes this book a useful tool for those seeking to improve their physical capabilities and prepare for potential self-defense situations.