Dr. Gregg W. Etter, Sr., Ed.D., is an Associate Professor of Criminal Justice at the University of Central Missouri. Prior to academic life, he had law enforcement experience with the Sedgwick County Sheriff's Office. He has written extensively and presented classes on gangs, white supremacist groups, and police management topics in the United States and Canada. He is a member of the American Society of Criminology, the Academy of Criminal Justice Sciences, and the National Sheriff's Association. He is a multiple recipient of the Frederic Milton Thrasher Award and is an editor of the Journal of Gang Research. He is the co-author of Hate Crime and Extremist Gangs (Knox and Etter, 2008). He has about 20 journal publications.

Dr. Carter F. Smith, J.D., Ph.D., is a retired U.S. Army CID Special Agent and has been with the Department of Criminal Justice Administration at Middle Tennessee State University, Murfreesboro, since 2006. He is the author of Gangs and the Military: Gangsters, Bikers, and Terrorists with Military Training (2017), a multiple recipient of the Frederic Milton Thrasher Award and is an editor of the Journal of Gang Research. He received a law degree from Southern Illinois University-Carbondale and a Doctorate of Philosophy from Northcentral University in Prescott Valley, Arizona.

1. Gang and Organized Crime History and Foundations 2. Los Angeles Area Street Gangs 3. Chicago Area Street Gangs 4. Outlaw Motorcycle Gangs 5. Prison Gangs 6. Females in the Gang World 7. Gangs and Violence 8. Gangs and the Military 9. Asian, East Asian, and African Organized Crime 10. Italian Organized Crime 11. Russian and other European Organized Crime 12. Drug and Other Trafficking Organizations in the Americas 13. Investigation and Prosecution of Gangs and Organized Crime Groups