Good Non-Fiction Books

[Propertarian]

Let's see:

This Time Let's Not Eat the Bones and/or Historical Baseball Abstract (the latest edition is the best) by Bill James
Ball Four
Homage to Catalonia (Orwell)
The Autobiography of Malcolm X
The Confessions (Rousseau; a mix of real and fake autobiography)
Philosophical Dictionary (Voltaire)

If you dig politics and economics I've got a couple bonus books:
Everything For Sale (Kuttner)
Happiness: Lessons From A New Science (Layard)
The Great Transformation (Polayni; get the edition from a few years ago if you can with the Stiglitz and Block foreword and Intro)