Elaine Hatfield (B.A. Michigan, Ph.D. Stanford) is Professor of Psychology at the University of Hawaii. She is well known as the scholar who pioneered the scientific study of passionate and companionate love. She has written many books on her research, among them two books that won the American Psychological Foundation's National Media Award: A New Look at Love and Mirror, Mirror: The Importance of Looks in Everyday Life. For the past two decades she has been generally ranked in citation reviews as the most frequently quoted social psychologist in the world. Richard L. Rapson(B.A. Amherst, Ph.D. Columbia) is Professor of History at the University of Hawaii. He has written a dozen books of history that focus on the psychological side of American life. He has also collaborated with Elaine Hatfield, his wife on a number of other books, including Emotional Contagion and Love, Sex, and Intimacy: Their Psychology, Biology, and History, as well as several recent novels.