Tanemura has produced high-quality DVD series covering the 27 core techniques of Gyokko Ryu, Koto Ryu, and Togakure Ryu. Yes, they cost more than a free PDF, but they include live demonstrations, slow-motion analysis, and verbal hints.

. Authentic copies of his teachings and books are typically sold through official federation channels or reputable martial arts book retailers. Websites offering "free" PDF downloads of this copyrighted material are generally unauthorized and illegal. The "27" Suffix