Diane Ehrensaft, PhD, is a developmental and clinical psychologist, the author of The Gender Creative Child and Gender Born, Gender Made, and coauthor, with Michelle Jurkiewicz, of Gender Explained. At the University of California, San Francisco, she is the cofounder and director of mental health at the Child and Adolescent Gender Center and a professor of pediatrics. She has been featured on the Los Angeles Times online and WIRED online and has appeared on Anderson Live, The Oprah Winfrey Show, and the Today show.