Alex’s recommended books updated.
Check it out.

● Sumo: A Thinking Fan’s Guide to Japan’s National Sport [Sumo]
● Kodokan Judo: The Essential Guide to Judo by Its Founder Jigoro Kano [Shorinji Kempo]
● Mind Over Muscle: Writings from the Founder of Judo [Judo]
● Budo: Teachings of the Founder of Aikido [Aikido]
● Aikido and the Dynamic Sphere: An Illustrated Introduction [Aikido]
● The Art of Peace: Teachings of the Founder of Aikido [Aikido]
● This is Shorinji Kempo [Shorinji Kempo]
● Kendo: Culture of the Sword [Kendo]