A free, self-paced textbook in 7 chapters. Read a chapter, then drill it with the 227 companion flashcards using spaced repetition.
Decision making is the process of choosing a course of action from multiple options based on goals, evidence, and trade-offs. At its heart, every decision involves selecting among...
Few distinctions in decision-making matter more than reversibility. A reversible decision can be changed cheaply later; an irreversible one is costly or difficult to unwind. The sa...
Human decisions are shaped by mental shortcuts that serve us well in familiar settings and betray us in unfamiliar ones. Kahneman's distinction between System 1 (fast, automatic, p...
Most consequential decisions are made without full information, so reasoning well under uncertainty is a core skill. Frank Knight drew the foundational distinction between risk, wh...
Good decisions benefit from choosing an approach that fits the situation. Dave Snowden's Cynefin framework sorts contexts into five domains. In Simple contexts, cause and effect ar...
Decisions in organizations rarely belong to a single mind, which is why roles and processes matter. A decision owner is the person accountable for making the call after gathering i...
Good judgment is built, not born, and several practices compound over time. A decision journal captures the reasoning, predictions, and emotions at the time a choice is made; revie...