Found in 1 comment on Hacker News
In that vein, there was "An Incomplete Education" [1].

It's roughly what you'd get if you asked a class of seniors a week before their graduation to write a few paragraphs on every topic they covered in college. Not a serious source, but enough to whet deeper interest or start a conversation.

"Very Short Introductions" [2] were also great to trade with friends.

[1] https://www.amazon.com/Incomplete-Education-Judy-Jones/dp/03...

[2] https://academic.oup.com/very-short-introductions

Fresh book recommendations delivered straight to your inbox every Thursday.