A complete illustrated guide to the history and designs of baseball caps, published by Asahi Shimbun Publications.
The author is Tsunashima Ritomo , Japan's only professional baseball design researcher and the driving force behind the boom in reproduction uniforms .
The book contains a huge number of illustrations and photographs, from rare caps from the early days of baseball to Major League Baseball, Japanese professional baseball, and minor league baseball .
Tsunashima's unique analysis, which also includes a fan's perspective, traces the evolution of baseball caps.