This newly updated edition of a popular text is the first to present a full-blooded interdisciplinary and theoretically coherent approach to the latest scientific findings relating to human sexual relationships. Written by recognized leaders in the field in a style that is rigorous yet accessible, it looks beyond the core knowledge in social and evolutionary psychology to incorporate material and perspectives from cognitive science (including brain-imaging studies), developmental psychology, anthropology, comparative psychology, clinical psychology, genetic research, sociology, and biology. Written by an international team of acclaimed experts in the field, offers a wealth of thought-provoking ideas and insights into the science behind the initiation, maintenance, and termination of romantic relationships. The features two new chapters on health and relationships, and friends and family, both of which shed new light on the complex links among human nature, culture, and romantic love. It covers key topics such as mate selection, attachment theory, love, communication, sex, relationship dissolution, violence, mind-reading, and the relationship brain. is designed for upper-level undergraduate students of human sexuality, psychology, anthropology, and other related fields.