The C Programming Language
Ritchie & Kernighan
Pragmatism, a New Name for Some Old Ways of Thinking
William James
A Theory of Fun for Game Design
Raph Koster
Conversations of Socrates (Classics)
Xenophon
12 Rules for Life: An Antidote to Chaos
Jordan B. Peterson
Civilization and its Discontents [1929; 2002, 2010]
Sigmund Freud