Recs if you like Microsculpture: Portraits of Insects...

Shorter books (under 200 pages) that are part of at least one quest. Many are also in the public domain, making them easily accessible when you want to grind for that next badge.

ps. looking for more diverse recs since my reads are mostly focused on politics and sociology, so if you have a rec from really any other topic, please leave it in the comments!