Brad Efron is Max H. Stein Professor of Humanities and Sciences and Professor of Statistics at Stanford University, and Professor of Biostatistics with the Department of Biomedical Data Science in the Stanford School of Medicine; he serves as Co-director of the undergraduate Mathematical and Computational Sciences Program administered by the Department of Statistics. He has held visiting faculty appointments at Harvard, UC Berkeley, and Imperial College, London. He has been recognized with the 2018 International Prize in Statistics.