Barry McCarthy, PhD, is a clinical psychologist with a subspecialty in marriage and sex therapy practicing at the Washington Psychological Center in Washington DC. He is professor of psychology at American University where he teaches an undergraduate human sexual behavior course. Barry, with his wife Emily, has written seven well-respected books, the most recent being Sexual Awareness: Couple Sexuality for the Twenty-First Century and Rekindling Desire: A Step By Step Program to Help Low-Sex and No-Sex Marriages.

In addition, he has published over fifty-five professional articles and fourteen books and has presented over one hundred and ten workshops nationally and internationally.