I don’t like giving generic book recommendations because the ‘best’ book depends on one’s life stage. On that note, here are some of my favourites:

Dune

Poor Charlie’s Almanac

Principles

Nineteen Eighty-Four

Zero to one

“Surely You’re Joking, Mr. Feynman”

The Fountainhead

Siddhartha

Thinking Fast and Slow

What it Takes

NNT: Fooled by Randomness;

Skin in the Game; Antifragile

"You could try to pound your head against the wall and think of original ideas or you can cheat by reading them in books." — Patrick Collison