Isao Shimizu is professor at Teikyō Heisei university. He leads researchs on manga and caricature. In 1982 he won the 1st prize Takahashi Kunitarô for his work on French caricaturist Georges Bigot. He is the author of many books on manga including Manga no rekishi [History of manga], Nenpyō - Nihon manga shi [Chronology of Japanese manga history].