Robin R. Milhausen is a Professor of family relations and human development in the Department of Family Relations and Applied Nutrition at the University of Guelph, in Guelph, Ontario, Canada. She is an active member, previously holding leadership roles, within the Canadian Sex Research Forum and the Society for the Scientific Study of Sexuality. She is an award-winning teacher and a passionately engaged mentor of undergraduate and graduate students. She is a Senior Research Fellow at The Kinsey Institute and a Research Fellow at the Rural Center for AIDS/STD Prevention. She serves as an associate editor of the Canadian Journal of Human Sexuality and is on the editorial board for the Archives of Sexual Behaviour and Sexuality Research and Social Policy.

John K. Sakaluk received his Ph.D. in social psychology, with a minor in quantitative psychology, from the University of Kansas in 2015. He completed a Social Sciences and Humanities Research Council (SSHRC) of Canada postdoctoral fellowship at the University of Toronto Mississauga, in the Department of Psychology. Sakaluk is now an assistant professor at the University of Victoria, in the Department of Psychology, where he is primarily responsible for teaching undergraduate- and graduate-level statistics courses, among other topics. He serves as the Statistical Consultant for the Canadian Journal of Human Sexuality. His research has focused on evaluating and establishing best practices for data analysis in social science research.

Terri D. Fisher is Professor Emeritus of Psychology at the Ohio State University and Visiting Professor of Psychology and Co-Director of Undergraduate Research at The University of the South in Sewanee, TN. She is a fellow of the Society for the Scientific Study of Sexuality and consulting editor for The Journal of Sex Research.

Clive M. Davis taught at Syracuse University. Davis' research was focused on sexuality and communications. He was editor of The Journal of Sex Research and president of the Society for the Scientific Study of Sexuality. He was the founding president of the Foundation for the Scientific Study of Sexuality.

William L. Yarber is Provost Professor in the Indiana University School of Public Health-Bloomington. He is also a senior research fellow at The Kinsey Institute and senior director of the Rural Center for AIDS/STD Prevention at Indiana University. Yarber is a past-president of the Society for the Scientific Study of Sexuality from which he also received the Distinguished Scientific Achievement Award. Yarber is a member of the international Kinsey Institute Condom Use Research Team.

Preface to the 4th Edition; 1. Abuse and Pedophilia; 2. Adolescents; 3. Affect and Emotions; 4. Arousal and Arousability; 5. Attitudes, Beliefs, and Cognitions; 6. Body Image and Sexualization; 7. Clinical Self-Efficacy;8. Coercion and Consent;9. Communication; 10. Compulsivity, Hypersexuality, and Addiction;11. Condoms;12. Desire and Interest;13. Families and Sexuality;14. Gender (Clinical);15. Gender Identity;16. Gender Roles, Norms, and Expressions;17. HIV/STI Attitudes and Behaviors;18. Identity and Orientation; 19. Love and Relationships; 20. Motivations; 21. Pleasure, Satisfaction, and Orgasm; 22. Sadism and Masochism; 23. Self-Concept and Self-Esteem; 24. Sexual Comfort and Erotophobia/Erotophobia; 25. Sexual Function, Dysfunction, and Difficulties; 26. Sexual Prejudice; 27. Sexual Scripts and the Sexual Double Standard; 28. Sexually Explicit Material and Online Sexual Activity; 29. Sociosexuality and Sexual Sensation Seeking