Here is a list of the Best books on old School Japanese Movies & Posters.

Japanese Movie Posters: Yakuza, Monster, Pink, and Horror by Tetsuya Masuda & Kairakutei Black

The only book in the west only dedicated to the subject. A tribute to lurid imagery and purple prose created by nameless designers at Japanese film studios.

TokyoScope: The Japanese Cult Film Companion by Patrick Macias.

Definitively a must read for every fan of yakuza, monster, horror, pink films.

The yakuza movie book by Mark Schilling

No Borders, No Limits: Nikkatsu Action Cinema

Outlaw Masters of Japanese Film

Stray Dogs & Lone Wolves: The Samurai Film Handbook

Warring Clans, Flashing Blades: A Samurai Film Companion

Silver Screen Samurai: The Best of Japan’s Samurai Movie Posters