Philip E. Tetlock is the Annenberg University Professor at the University of Pennsylvania and holds appointments in the psychology and political science departments and the Wharton School of Business. He and his wife, Barbara Mellers, are the co-leaders of the Good Judgment Project, a multi-year forecasting study. He is also the author of Expert Political Judgment and (with Aaron Belkin) Counterfactual Thought Experiments in World Politics. Dan Gardner is a New York Times bestselling author, speaker, and consultant. His three books on psychology and decision-making--published in 25 countries and 19 languages--have been praised by everyone from The Economist to Nobel laureate Daniel Kahneman. Prior to becoming an author, Gardner was a newspaper columnist, talking head, and investigative journalist who won or was nominated for every major award in Canadian newspaper journalism. He is an honorary senior fellow at the University of Ottawa's Graduate School of Public Policy and International Affairs and lives in Ottawa, Canada.
