The thoroughly revised and updated second edition of The Psychology of Human Sexuality explores the roles that biology, psychology, and the social and cultural context play in shaping human sexual behavior. The author - a noted authority on the topic and an affiliate of the acclaimed Kinsey Institute - puts the spotlight on the most recent research and theory on human sexuality, with an emphasis on psychology. The text presents the major theoretical perspectives on human sexuality, and details the vast diversity of sexual attitudes and behaviors that exist in the modern world. The author also reviews the history of sexology and explores its unique methods and ethical considerations. Overall, this important and comprehensive text provides readers with a better understanding of, and appreciation for, the science of sex and the amazing complexity of human sexuality. Features broad coverage of topics including anatomy, gender and sexual orientation, sexual behaviors, sexual difficulties and solutions, prostitution, and pornography Offers more in-depth treatment of relationships than comparable texts, with separate chapters dealing with attraction and relationship processes Includes cutting-edge research on the origins of sexual orientation and gender identity, as well as new treatments for sexually transmitted infections and sexual dysfunctions Is written from a sex-positive perspective, with expanded coverage of cross-cultural research throughout and material that is inclusive and respectful of a diverse audience Includes numerous activities to facilitate dynamic, interactive classroom environments.