Just a heads up that the massive 'A Drifting Life' (Yoshihiro Tatsumi's auto-biography as manga) depicts a number of his interactions with Tezuka, discussion of Tezuka's influence on manga (and Tatsumi), etc. It's a good read if you have an interest in the general development of manga, but maybe not so much if you are only interested in specific tezuka works.
Regardless, very cool to see Tezuka (as a college student) taking such an involvement in young (HS age) illustrators.