John O'Quigley is professor of statistics in the Department of Statistical Science, University College London. Professor O'Quigley's academic career began as MRC research scientist at the University of Leeds, U.K., a stint followed by several positions in France, the most recent being in the Laboratory of Probability, Statistics and Modelling, University of Paris - Sorbonne. The most significant part of Professor O'Quigley's career has been spent in the United States, mainly in the Department of Mathematics, University of California San Diego during which time he was a tenured full professor of mathematics. He was also Director of the Laboratory for Mathematics and Statistics. Prior to that Professor O'Quigley was a researcher at the Fred Hutchinson Cancer Research Center and the Department of Biostatistics, University of Washington, Seattle. Several years were also spent as full professor at the University of Virginia Medical School as well as the Department of Mathematics at Lancaster University, U.K.