Tammy Nelson, PhD, is a board-certified Sexologist, and Certified Sex Therapist and Supervisor. She is also a Certified Imago Relationship Therapist, Licensed Professional Clinical Counselor, and Certified Sex and Relationship therapist.
Tammy is the author of six books, including Open Monogamy: A Guide to Co-Creating Your Ideal Relationship Agreement; When You’re the One Who Cheats; Getting the Sex You Want and The New Monogamy: Redefining Your Relationship After Infidelity.
Dr. Nelson has been quoted as a featured expert in The New York Times, NY Times Magazine, CNN, This Now, Wall Street Journal, Rolling Stone Magazine, Washington Post, The Sun, The Times London, and Time Magazine.
Tammy Nelson is the Director and Founder of the Integrative Sex Therapy Institute, a training institute and think tank focused on obtaining and creating sustainable relationships. She is a TEDx speaker and has a popular podcast called The Trouble with Sex.


Tammy and I have worked together for years, and I did my first ever telecourse with her. Her book ’The New Monogamy’ explores the definition of infidelity, speaking to the many unspoken assumptions we often make in our romantic partnerships. It’s a clear, concise tool for navigating monogamy after a breach of trust.

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