Burton G. Malkiel is the Chemical Bank Chairman's Professor of Economics Emeritus at Princeton University. He is a former member of the Council of Economic Advisers, dean of the Yale School of Management, and has served on the boards of several major corporations, including Vanguard and Prudential Financial. He is the chief investment officer of Wealthfront.Tricia Tunstall is both a writer and a music educator. The author of Changing Lives and Note by Note: A Celebration of the Piano Lesson, she has written for the Kenyon Review and the New York Times. She lives in Maplewood, New Jersey.