I have recently published An Illustrated Introduction to Japanese Baseball Cards.
This lavishly illustrated color book introduces the history and types of Japanese baseball cards from their beginnings in the 1890s until the present day. Appendices include lists of the Japanese Pro Baseball career batting and pitching leaders as well as the kanji for all members of the Japan Baseball Hall of Fame to help collectors identify Japanese cards. 77 pages and over 200 color pictures.
It's available at a pdf for $4.99 or as a glossy, full-color paperback for $24.99.
The book is available on my website
www.RobFitts.com. or on Amazon.
Rob Fitts