If you’re looking to make your knowledge of the world more well rounded, the Oxford University Press’ Very Short Introduction series is a great place to start. The books are written by experts, usually 120-160 pages long (3-5 hours in audio) and generally at roughly a first year university subject level. They have books on an astounding range of subjects. I’m trying to read as many of them as possible, I’ve finished 25 so far
https://global.oup.com/academic/content/series/v/very-short-introductions-vsi/