Thomas Keller, PhD, is the Duncan and Cindy Campbell Professor of Children, Youth, and Families in the School of Social Work at Portland State University. He directs the PSU Summer Institute on Youth Mentoring and the Center for Interdisciplinary Mentoring Research. He also is Co-Principal Investigator of the BUILD EXITO initiative, a major NIH-funded project to support undergraduates from traditionally under-represented student populations in preparing for graduate studies in biomedical and health sciences research. His research interests include the development and influence of mentoring relationships, social networks in mentoring interventions, evaluation of program innovations and enhancements, the professional development of program staff, and the mentoring of undergraduates in science, biomedical, and health fields. Dr. Keller’s projects have been supported by the National Institutes of Health, Office of Juvenile Justice and Delinquency Prevention, Spencer Foundation, and William T. Grant Foundation. Previously, Tom was a professor at the University of Chicago School of Social Service Administration where he earned its highest teaching award in 2003. He holds a BS from Stanford University, and an MPA and PhD from the University of Washington.