Brian Allen, Psy.D., is a clinical psychologist, Professor of Pediatrics and Psychiatry in the Penn State College of Medicine, and core faculty in the Child Maltreatment Solutions Network at Penn State University. He was the founding and long-time director of the Stine Foundation Transforming the Lives of Children (TLC) Research and Treatment Center at the Penn State Golisano Children’s Hospital, an outpatient treatment program for children, adolescents, and families affected by child maltreatment. He conducts research on the developmental impact of childhood trauma and maltreatment, the effectiveness and implementation of clinical interventions for maltreated children, and problematic sexual behavior among preteen children. His research is funded by the National Institutes of Health, the Children’s Miracle Network, and other public and private agencies. To date, he has published over 60 peer-reviewed articles and book chapters and is the author of the recently released book, The Science and Clinical Practice of Attachment Theory: A Guide from Infancy to Adulthood (American Psychological Association).