Yakuza Diary: Doing Time in the Japanese Underworld (1996)

Japanese gangsters--the Yukuza--make up the biggest, richest, and most secretive organized crime syndicates in the world. The combined Yakuza is ten times larger than the American mafia, with profits that would rival any Fortune 500 company. Written in the tradition of Nicholas Pileggi's Wiseguy, Seymour's Yakuza Diary infiltrates the Yakuza, presenting the details of a world that, until now, has remained modern Japan's dirty little secret.