This book is about sex offenders. Whereas most books will focus on either sex crimes or sexual deviance, this book examines the entire etiology of sex crimes. This includes discussions of the nature of sex crimes, sexual deviance, and, maybe most importantly, the processing of sex offenders through the criminal justice system. This includes sex offender interactions with law enforcement, the courts, and corrections. Corrections for sex offenders encompasses a myriad of programs: prison, sex offender registration and notification, civil commitments, residence restrictions, and treatment. One unique aspect of this book is its focus on criminal justice system’s treatment of sex offenders, given scant if any coverage in other books. The book also emphasizes two of the most common sex crimes, rape and sex offenses against children, and addresses the impact of sex crimes on victims. In sum, this book offers a comprehensive approach to the study of sex offenders.