It might be more time-understanding efficient to watch the video if/when you have enough time to mull what they show in it over. I'm not sure I would have gotten a useful take on this particular thing in a set of short text summaries and I'm usually one very biased towards that kind of consumption.

The books are the books that are recommended to read if you want to understand what they're doing and what prior work they're building on.

Bret mentioned computer literacy on the website. The books you can consider as "the curriculum" or "the theory" or what have you.