Ian Kerner, Ph.D., FAACS, is the author of She Comes First: the Thinking Man's Guide to Pleasuring a Woman, which was selected by both Amazon.com and Borders as a "Best of 2004" non-fiction title and has been translated into numerous languages around the world, as well as its companion book He Comes Next: the Thinking Woman's Guide to Pleasuring a Man. Ian also authored the New York Times bestseller Be Honest, You're Not That Into Him Either, and the recently released D.S.I. Date Scene Investigation: the Diagnostic Manual of Dating Disorders.

Ian is certified to counsel patients by the American Association of Sex Educators, Counselors and Therapists (AASECT) and is a Diplomate in Sex Therapy of the American Board of Sexology. Ian is also a member of the American Association for Marriage and Family Therapy, the International Society for the Study of Women's Sexual Health and The Society for the Scientific Study of Sexuality (SSIS).

Ian is a Phi Beta Kappa graduate of Brandeis University, and also holds advanced degrees from New York University and the American Academy of Clinical Sexologists. Ian is a former Thomas J. Watson Fellow and a recipient of the Erwin J. Haberle Award in Clinical Sexology.

Ian was born and raised in New York City where he resides with his wife, Lisa Rubisch, a commercial and music-video director, their sons, Owen and Beckett, and a Jack Russell Terrier named Houdini.