Thinking, Fast and Slow — Daniel Kahneman (2011)

Daniel Kahneman's Thinking, Fast and Slow synthesised 40 years of behavioural economics research into a general theory of human cognition: System 1 (fast, instinctive, emotional) versus System 2 (slow, deliberate, logical) thinking. The book transformed public understanding of cognitive biases, decision-making, and the limits of human rationality, and influenced policy design, financial regulation, and management theory worldwide.