I'm sure some other people here would appreciate these Computerphile videos that talk about the history of digital type. Maybe not useful, but for those who love details of our history:
A bit about early digital type:
https://www.youtube.com/watch?v=jAdspOtgciQ&list=WL&index=33and some about early typesetting:
https://www.youtube.com/watch?v=CVxeuwlvf8w&index=2&list=LLwtJvGeBTSw0dy4SJ-lMISQ