10 Lessons to Transform Your Marriage by John Gottman Ph.D. and Julie Gottman Ph.D.
The Man's Guide to Women: Scientifically Proven Secrets from the "Love Lab" About What Women Really Want by John Gottman Ph.D. and Julie Gottman Ph.D.
The Five Love Languages: The Secret to Love that Lasts by Gary Chapman
The Complete Idiot's Guide to Intimacy by Dr. Paul Coleman
Passionate Marriage: Keeping Love and Intimacy Alive in Committed Relationships by David Schnarch Ph.D.
After the Affair: Healing the Pain and Rebuilding Trust When a Partner Has Been Unfaithful by Janis Abrahms Spring, Ph.D.
The Gottman Institute
A Couple's Guide to Sexual Addiction: A Step-by-Step Plan to Rebuild Trust and Restore Intimacy by Paldrom Collins and George N. Collins
Your Sexually Addicted Spouse: How Partners Can Cope and Heal by Barbara Steffens and Marsha Means