Dr. Marty Klein is the award-winning author of 7 books, including the ground-breaking Sexual Intelligence. He has been a Licensed Marriage & Family Therapist and Certified Sex Therapist for 42 years--that's over 40,000 sessions with individuals and couples. He appears frequently in the national media, including The New York Times, National Public Radio, and the Daily Show. He is an Expert Witness in various state and federal courts, and has given two Congressional briefings on evidence-based sex education.