Dr. Klein has been a Licensed Marriage & Family Therapist and Certified Sex Therapist for 31 years. He has aimed his entire career toward a single set of goals: telling the truth about sexuality, helping people feel sexually adequate & powerful, and supporting the healthy sexual expression and exploration of women and men.

Marty pursues his goal of a sexually enlightened world through therapy, lectures, writing, lobbying, media, and forensic (courtroom) work.

Marty has authored over 100 articles in publications such as Parents, New Woman, and Playboy, as well as San Francisco Medicine, the California Therapist, and the Journal of Homosexuality. He is a former contributing editor to The New Physician, American Baby, and Modern Bride, and he is quoted every year in dozens of national publications and websites, such as The New Yorker and Huffington Post.

Marty has written six books:

Your Sexual Secrets: When to Keep Them, When & How to Tell
Ask Me Anything: Dr. Klein Answers the Sex Questions You’d Love To Ask
Beyond Orgasm: Dare to be Honest About the Sex You Really Want
Let Me Count the Ways: Great Sex Beyond Intercourse
America’s War On Sex: The Attack on Law, Lust, & Liberty
Sexual Intelligence: What We Really Want From Sex, And How to Get It

His books have been acclaimed by everyone from USA Today and The California Therapist to Penn & Teller and the Playboy Advisor. Published in eleven languages, his books have been excerpted in national magazines, and cited in the popular and professional press. Marty also has chapters in several professional books, such as The Handbook of Clinical Child Psychology and Treating Sexual Disorders.

A popular guest on the electronic media, Marty has been featured on radio in over 100 cities, and on national TV programs like 20/20 and Nightline. His blog is widely quoted, and his electronic newsletter, Sexual Intelligence, goes to 5,000 subscribers every month.

Marty is that rare professional: truly expert in his subject, comfortable on live TV and in front of audiences, and extremely funny. His wit and expertise make him a frequently-quoted expert appearing in Newsweek, the New York Times, and even Ann Landers.

A tireless speaker, Marty has given over 700 keynote speeches, training programs, and popular lectures to groups including the American College of Surgeons, First Amendment Lawyers’ Association, Lutheran Family & Children’s Services, Miami Women’s Hospital, National Association of Social Workers, Planned Parenthood Federation of America, California Association of Marriage & Family Therapists, American Library Association, Stanford University Medical School, and over 50 colleges across the country.

Marty’s accomplishments are also recognized abroad: he has trained professionals in two dozen countries, including China, Turkey, India, Israel, Morocco, Croatia, and Russia. He has been given honorary membership in a variety of international professional associations.

Marty fights for the sexual rights of all Americans through his legal and courtroom work. He has been an expert witness, consultant, or invited plaintiff in many state and federal censorship, internet, and obscenity cases.

Known and respected by his colleagues, Marty has been elected a national board member of the Society for the Scientific Study of Sexuality. Marty has also been honored by the California Association of Marriage & Family Therapists. His book America’s War On Sex was honored as Book of the Year by the American Association of Sex Educators, Counselors, & Therapists.

As a clinician, Marty works each week with couples and individuals who have a variety of sexual and non-sexual difficulties–over 30,000 sessions since 1980. He also provides consultations to other therapists, and supervises their cases. Marty lives in Northern California with his wife, cactus garden, and enormous collection of rock ‘n’ roll albums.

For more on Marty and his work, visit his website.