In The Science of Fear, Gardner reveals why we so often worry about what we shouldn't and don't worry about what we should. The Guardian called it "an invaluable resource for anyone who aspires to think clearly."

In Future Babble, Gardner looks at the dismal record of expert forecasts and why we keep listening to overconfident pundits. Harvard psychologist Steven Pinker said it "should be required reading for journalists, politicians, academics, and anyone who listens to them."

In Superforecasting: The Art and Science of Prediction, Gardner and co-author Philip Tetlock distill important lessons about forecasting, teamwork, and good judgment. Superforecasting was chosen as one of the best books of 2015 by The Economist, Bloomberg, and Amazon.