This popular text is a comprehensive guide for law enforcement and criminal justice-related professionals, mental health professionals, teachers and parents. It includes gang life style, sociology and characteristics of: Latino, Asian, African-American, White Supremacists, Prison, Outlaw Motorcycle, Occult and Hybrid gangs. The author, Al Valdez, had been in law enforcement for over 17 years and has presented formal gang training to hundreds of police officers, investigators and probation officers, as well as gang awareness classes for parents and teachers.