Fifth printing, 1996 Kodansha Gendai Shinsho By Yoichi Saito and Shinzaburo Oishi Longer than a paperback. This book describes the social class divisions of the Edo period and the occupations of people in each class, which was generally considered a discriminatory society. It's old, but books researched by scholars contain information that AI can't find. Recommended for those studying social systems and those seeking to master Edo-period trivia. Will be sent by mail.