Bruce D. Perry, MD, Ph.D. researches the impact of trauma and maltreatment on the developing brain and has published extensively. He is co-author of Born for Love: Why Empathy is Essential—And Endangered (Morrow, 2010) and The Boy Who Was Raised as a Dog and Other Stories from A Child Psychiatrist's Notebook (Basic, 2007). He is an experienced clinician and teacher and is often one of the first experts called to help deal with potentially traumatic events affecting large numbers of children. For example, he was the first called by Oprah Winfrey when she discovered that several girls had been abused at her Leadership Academy in South Africa. He treated the children released during the cult stand-off in Waco, Texas—and more recently, consulted for the state of Texas in the child custody case involving hundreds of children of polygamists. He has consulted for numerous law enforcement (including the FBI), mental health, educational, child welfare and juvenile justice institutions and agencies around the world.