- "The Spirit of Aikido" (2002)
- "Aikido: Its History and Practice" (2004)
- "Aikido: The Modern Martial Art" (2006)
- "Invincible Warrior: Aikido and the Way of the Martial Artist" (2010)
- "The Real Bruce Lee: Fighting Spirit and the Legacy of the Little Dragon" (2012)
- "Budo: The Art and Science of Unarmed Self-Defense" (2014)
- "How to Meditate: A Practical Guide for Beginners" (2015)
- "The Essential Guide to Aikido" (2017)
- "The Aikido Manual: Fundamental Principles and Techniques" (2019)
- "The Way of the Warrior: A Guide to the Philosophy, Principles, and Practice of Aikido" (2021)