Ask HN: Books that compelled you to go down a rabbit hole study of the topic?

Have you ever come across a book that you didn't know would blow your mind out of proportions so much that you had to go down a rabbit hole of learning more about the book's subject and really benefitting out of it in the end?

What was that book and what was the experience like?

While going down the rabbit hole, what other books did you read that are worth the mention?