James C. (Buddy) Howell, Ph.D., worked at the federal Office of Juvenile Justice and Delinquency Prevention (OJJDP) in the U.S. Department of Justice for 21 years, mostly as Director of Research and Program Development. He also served as Deputy Administrator of OJJDP. He currently is Senior Research Associate with the National Gang Center in Tallahassee, Florida, where he has researched gangs for the past 15 years. He has published 40 works on youth and street gangs, and a similar number on juvenile justice and youth violence, including 3 books. One of which, Preventing and Reducing Juvenile Delinquency (SAGE) is now in its second edition. Some of his published works have appeared in Crime & Delinquency (SAGE), Criminology, the Journal of Research in Crime and Delinquency (SAGE), and Youth Violence and Juvenile Justice (SAGE). Dr. Howell is very active in helping States and localities reform their juvenile justice system and employ evidence-based programs, and in working with these entities in addressing gang problems in a research-based, data-driven, and balanced approach.