What If?: Serious Scientific Answers to Absurd Hypothetical ...
Randall Munroe
Zen and the Art of Motorcycle Maintenance
Robert M. Pirsig
Leaders Eat Last: Why Some Teams Pull Together and Others Don't
Sinek, Simon
Nudge: Improving Decisions About Health, Wealth, and Happiness
Sunstein, Cass R. & Richard H. Thaler
Mere Christianity
C. S. Lewis