Katherine M. Hertlein, Ph.D., is a professor in the Couple and Family Therapy Program in the Department of Psychiatry and Behavioral Health at the University of Nevada, Las Vegas. She has over written over 100 publications and lectures nationally and internationally on couples, sex, and technology.

Nancy Gambescia, Ph.D., CSTS,is the director of the postgraduate training program in sex therapy at Council for Relationships, Philadelphia, PA. She has published numerous journal articles, book chapters, and six books on sex and relationship therapy, winning the 2016 book and integration awards from AASECT with Drs. Weeks and Hertlein.

Gerald R. Weeks, Ph.D., ABPP, CST, is professor emeritus at the University of Nevada, Las Vegas. Dr. Weeks has published 26 professional books on individual, couple, sex, and family therapy. He currently maintains a private-practice near Seattle, WA.

1. The Intersystem Approach to Sex Therapy 2. The Profession of Sex Therapy: Current Challenges 3. What Every Sex Therapist Needs To Know 4. Male Hypoactive Sexual Desire Disorder 5. Systemic Treatment of Erectile Disorder 6. A New Systemic Treatment Model for Couples with Premature Ejaculation: Master Conflict Theory 7. The Complex Etiology of Delayed Ejaculation: Assessment and Treatment Implications 8. Systemic Treatment of Sexual Interest/Arousal Problems in Women 9. Female Orgasmic Disorder 10. Painful Intercourse: Genito-Pelvic Pain Penetration Disorder 11. The Interplay Between Mental and Sexual Health 12. Sex Therapy with Same-Sex Couples 13. Treating Those Who Struggle with Sexual Desires 14. Unique Factors in the Integration of Aging and Sexual Health 15. Treating Infidelity 16. Culture and Sexuality 17. Technology's Role in Sexual Relationships: Impediments and Solutions 18. Conclusion