Sphere of Influence

This book reads like someone who has been doing this for several decades. It is very technical and sophisticated material. His passion for the arts shined through in each chapter I read.
--Grandmaster Isaiah Gathings, author of The Book of Six Tenets: Martial Arts and Life, Soo Do Thai Instructor

It's essential to be aware of your surroundings and know how to protect yourself. In Sphere of Influence: An Approach to Self-Defense, M.D. Holden discusses martial arts systems including Wing Chun and Shim Gum Do, to help you disable an attacker before a situation becomes more dangerous.

By discussing sparring, hand-to-hand combat, and Wing Chun's relation to edged weapons, and stressing the importance of constant vigilance, M.D. Holden offers readers who are already well-versed in martial arts a well-rounded introduction to his approach to self-defense.

M.D. Holden was a Wing Chun practitioner and martial artist of eleven years. He took his own life in August of 2015 at the age of twenty-seven. This book serves to honor his life and his life's work.