Four Ways of Thinking
David Sumpter
Solve for Happy
Mo Gawdat
Zen and the Art of Motorcycle Maintenance
Robert M. Pirsig
Nudge: Improving Decisions About Health, Wealth, and Happiness
Sunstein, Cass R. & Richard H. Thaler
It Doesn't Have to Be Crazy at Work
Jason Fried & David Heinemeier Hansson
Mere Christianity
C. S. Lewis