In this textbook, Simon LeVay and Janice Baldwin aim to help students understand the diversity of human sexual expression as well as the diversity of perspectives from which sexuality can be studied. Well known for its high-quality presentation of biological aspects of sexuality, Discovering Human Sexuality, Fourth Edition, devotes rich coverage to the insights gained from cognitive science, social psychology, sociology, feminism, and cross-cultural studies, along with both moral and political discourse on sexual themes.

The fourth edition provides up-to-date coverage of...