- Fighting Science: The Laws of Physics for Martial Artists
- Sweden: An Illustrated History (Illustrated Histories (Hippocrene))
- Strength & Power Training for Martial Arts
- The Martial Arts Book of Physics: How To Maximize Your Power, Speed and Endurance Using The Natural Laws of Motion.
- Longsword and Saber: Swords and Swordsmen of Medieval and Modern Europe (Knives, Swords, and Bayonets: A World History of Edged Weapon Warfare)