The Great Mental Models Volume 2
Shane Parrish
Thinking About Logic: Classic Essays
Steven M. Cahn & Robert B. Talisse & Scott F. Aikin
Thinking in Systems: A Primer
Donella H. Meadows & Diana Wright
Misbehaving: The Making of Behavioral Economics
Richard H. Thaler
Flow
Mihaly Csikszentmihalyi
Harper Perennial Modern Classics (1)