Good Nonfiction?

Almost forgot this board existed. Can anyone recommend some good non-fiction books? I recently realized that I waste too much time on the subway and need something to read, preferably something non-fiction so I can feel like I'm learning something.

>>3
yes.
ok, shit maybe useless nowadays. It's like reading Sun Tzu. Still, it's fucking great to read. you feel like you are ready to conquer the world.