Written by one of the world's leading authorities on close relationships, this accessible study is one of the first to look seriously at what science can tell us about love, sex and friendship.

Garth Fletcher is Professor of Psychology at the University of Canterbury, New Zealand, and is a fellow of The Royal Society of New Zealand, The Society of Personality and Social Psychology and the American Psychological Society. He is the author of The Scientific Credibility of Folk Psychology (1995) and a co-editor of Cognition in Close Relationships (1991), Knowledge Structures in Close Relationships (1996) and the Blackwell Handbook of Social Psychology: Interpersonal Processes (2001).