Joe Decuir Engineering Notebook 1978 : Joe Decuir : Free Download, Borrow, and Streaming : Internet Archive
https://archive.org/details/JoeDecuirEngineeringNotebook1978/
Joe Decuir's 1978 engineering notebook from when he worked at Atari, including design concepts (lots on the Atari 400/800, especially the ANTIC chip) feasibility studies, meeting notes, teardown of competing products (such as Magnavox Odyssey 2)