Philip Tetlock is Leonore Annenberg University Professor of Psychology at the University of Pennsylvania. He is the author of several books on politics and psychology, including Counterfactual Thought Experiments in World Politics and the award-winning Expert Political Judgment: How Good Is It? How Can We Know?

Dan Gardner is a journalist, author and lecturer. He is the best-selling author of Future Babble: Why Expert Predictions Fail and Why We Believe them Anyway and Risk: The Science and Politics of Fear, which was published in 11 countries and 7 languages. He lives in Ottawa, Canada.

The international bestseller

'A manual for thinking clearly in an uncertain world. Read it.' Daniel Kahneman, author of Thinking, Fast and Slow
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What if we could improve our ability to predict the future?

Everything we do involves forecasts about how the future will unfold. Whether buying a new house or changing job, designing a new product or getting married, our decisions are governed by implicit predictions of how things are likely to turn out. The problem is, we're not very good at it.

In a landmark, twenty-year study, Wharton professor Philip Tetlock showed that the average expert was only slightly better at predicting the future than a layperson using random guesswork. Tetlock's latest project - an unprecedented, government-funded forecasting tournament involving over a million individual predictions - has since shown that there are, however, some people with real, demonstrable foresight. These are ordinary people, from former ballroom dancers to retired computer programmers, who have an extraordinary ability to predict the future with a degree of accuracy 60% greater than average. They are superforecasters.

In Superforecasting, Tetlock and his co-author Dan Gardner offer a fascinating insight into what we can learn from this elite group. They show the methods used by these superforecasters which enable them to outperform even professional intelligence analysts with access to classified data. And they offer practical advice on how we can all use these methods for our own benefit - whether in business, in international affairs, or in everyday life.
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'The techniques and habits of mind set out in this book are a gift to anyone who has to think about what the future might bring. In other words, to everyone.' Economist

'A terrific piece of work that deserves to be widely read . . . Highly recommended.' Independent

'The best thing I have read on predictions . . . Superforecasting is an indispensable guide to this indispensable activity.' The Times