Gerd Gigerenzer is Director at the Max Planck Institute for Human Development, Berlin. He is the author of Calculated Risks, among other books, and the coeditor of Bounded Rationality: The Adaptive Toolbox and Heuristics and the Law, both published by the MIT Press.
J. A. Muir Gray is director of the National Knowledge Service, Oxford. He is the author of Evidence-Based Healthcare.