 Under Nakayama's leadership, a generation of respected instructors spread karate worldwide, guided from the JKA headquarters in Tokyo.Nakayama's books, which include "Dynamic Karate" and the "Best Karate" series, are fundamental reference materials on Shotokan karate as practiced under the JKA.Clive Nicol, in his classic book "Moving Zen", describes the karate practice at the JKA's "honbu dojo" (headquarters training hall) in Tokyo during the early 1960s, from his unique perspective as a western karate student going from white to black belt in a few years.