Joan A. Friedman, PhD, is a gifted psychotherapist who has devoted many years of her professional career to educating twins and their families about twins' emotional needs. Having worked through her own twinship challenges and parented her fraternal twin sons, she is a definitive expert on twin development.

She is the author of Emotionally Healthy Twins: A New Philosophy for Parenting Two Unique Children, The Same but Different: How Twins Can Live, Love, and Learn to Be Individuals, and Twins in Session: Case Histories in Treating Twinship Issues. She has spoken to and consulted with culturally diverse groups of twins around the world. Dr. Friedman's work focuses on issues that adult twins confront as they adjust to life as singletons after having been raised as twins.