TAKEUCHI Osamu was born in Osaka prefecture in 1951. After enrolling in Osa- ka Kyoiku University, he set his sights on manga research. The theme of his gradu- ation thesis was Changes in the Astro Fig- ure in Astro Boy. In 1975, he went on to graduate from the same university and ob- tained a master’s degree with his master's thesis, Research on Cinematic Techniques in Manga by Tezuka. In an attempt to en- ergize the eld of manga research in ear- nest in Japan, he launched the research journal Jido Manga Kenkyu (Research on Children’s Manga) in 1980. After a time at Osaka International University, he became a professor at the Faculty of Social Stud- ies, Doshisha University. He is engaged in research on children’s culture and manga with a particular emphasis on researching manga by TEZUKA Osamu. His writings include Tezuka Osamu-ron (Discussions on Tezuka Osamu; Heibonsha, 1992), Sengo Manga 50 Nenshi (A 50-year His- tory of Post-war Manga; Chikumashobo, 1995), Tezuka Osamu—A-chisuto ni Na- runa (Tezuka Osamu—Don’t Become an Artist; Minervashobo, 2008), and Manga Hyogengaku Nyumon (Introduction to the Study of Expression in Manga; Chiku- mashobo, 2005). He has edited and over- seen publications such as Manga Hihyo Taikei (An Overview of Manga Criticism; Heibonsha, 1989), Manga Bunka 55 no Ki-wa-do (55 Keywords in Manga Culture; Minervashobo, 2016), and Manga/Anime Bunkenmokuroku (Bibliography of Comic and Animation; Nichigai Associates, Inc., 2014). In 1997, he launched Biranji, a re- view and research journal on manga and children’s culture that is now up to 41 is- sues. In addition, he has also published manga works under the pen name, OSA Takeshi given to him by TEZUKA Osamu.