1) Einsteins Dreams - This book is a quick read, but shows a bunch of different perceptions of time. Fantastic.
2) Rock warriors way - Even if you aren't a climber, I feel like this book has a lot of great lessons about committing without fear. Much more accessible as a climber though.
3) Understanding Comics: The Invisible Art - Quick read, I learned a lot about storytelling in general.
4) Agnotology: The Making and Unmaking of Ignorance - This is a series of essays and the first few were great views into companies creating ignorance in the 50's around smoking and link to cancer. Gets a little dense after a while.