D J Hand, Emeritus Professor of Mathematics at Imperial College London and a past President of the Royal Statistical Society. He has published 31 books, including one with Imperial College Press, now part of World Scientific Press, and others including Dark Data: Why What You Don't Know Matters (Princeton University Press: translated into 7 other languages) and The Improbability Principle: Why Coincidences, Miracles, and Rare Events Happen Every Day (FSG: translated into 6 other languages).