Walter Mischel holds the Robert Johnston Niven chair as professor of humane letters in psychology at Columbia University. He is the author of more than two hundred scientific papers as well as the coauthor of Introduction to Personality, now in its eighth edition. He has been elected to the National Academy of Sciences and the American Academy of Arts and Sciences, and has won the Distinguished Scientific Contribution Award of APA and the Grawemeyer Award for Psychology. He lives in New York.