Overview
Former professional poker player Annie Duke applies decision-making strategies from the poker table to everyday life. She argues that thinking in terms of probabilities and bets, rather than certainties, leads to dramatically better decisions in an uncertain world.
Duke spent two decades as a professional poker player, including winning the 2004 World Series of Poker Tournament of Champions. After retiring, she moved into decision strategy consulting. Thinking in Bets, published in 2018, applies her poker-formed intuitions about uncertainty to ordinary decisions in business and life.
Key Ideas
Resulting is a trap
Don't judge decisions by their outcomes alone; good decisions can have bad results and vice versa.
Think in probabilities
Instead of thinking in black and white, assign likelihood percentages to different outcomes.
Separate skill from luck
Many outcomes involve both skill and luck; learning to distinguish them improves future decisions.
Create a decision group
Surround yourself with people who challenge your thinking and hold you accountable.
Who should read this
Anyone whose work involves making decisions under uncertainty — which is most decision-making worth the name. Especially useful for people who tend to judge their decisions by outcomes rather than process, and beat themselves up when a good decision happened to go wrong. The vocabulary of 'resulting' alone is worth the book.
Who might skip it
Skip if you want deep statistics or formal decision theory — this is a popular book and Duke trades formalism for accessibility. Also skip if you already have a poker or trading background, as many of the ideas will feel like rehashed common sense.
The verdict
Short, clear, and immediately useful. Duke's move is to separate decision quality from outcome quality, and to give you a practical way to keep track of both. I now find myself thinking 'what did I know, when did I know it, and would I have made the same call again' after big decisions — that habit came directly from this book.
"What makes a decision great is not that it has a great outcome. A great decision is the result of a good process."
— Annie Duke, Thinking in Bets
If you liked this
How to Decide by Annie Duke is the more tactical follow-up. For the heavyweight version, read The Signal and the Noise by Nate Silver.