Diane Ehrensaft, PhD, is a developmental and clinical psychologist in the San Francisco Bay Area and Director of Mental Health and founding member of the Child and Adolescent Gender Center, a partnership between the University of California San Francisco and community agencies. Dr. Ehrensaft’s research and writing focus on the areas of child development, gender, gender-nonconforming and transgender children and youth, parenting, parent–child relationships, LGBTQI families, and psychological issues for families using assisted reproductive technology. She has published several books and articles in these areas and lectures, serves as an expert witness, and makes media appearances nationally and internationally on these topics. Dr. Ehrensaft has a clinical practice in Oakland, California, where she sees adults, children, and adolescents.