Sheena S. Iyengar is the inaugural S.T. Lee Professor of Business in the Management Division at Columbia Business School. Prior to joining the Columbia faculty in 1998, she served on the faculty of the Sloan School of Management at MIT. Iyengar has revolutionized the study of choice and decision-making with her research into the negative impact of choice quantity on decision quality. Her book, “The Art of Choosing,” explores the many facets of choice, both its pleasures and its perils, and offers handy techniques anyone can learn in order to start choosing better.