David Hand was Professor of Statistics at the Open University and then at Imperial, until 2012. He is now Emeritus Professor of Mathematics and Senior Research Investigator. He has written 17 books, both academic and more popular. His books include Statistics VSI (OUP, 2008), The Wellbeing of Nations (Wiley, 2014), and most recently, The Improbability Principle (Scientific American, 2014).