Seven papers on the incidence and seriousness of sexual offending present research methodologies and findings on child molesters' behavioral patterns, the prevalence of child sexual abuse in Great Britain, sex offenses against young girls, changes in the pattern and nature of sex offenses, the recidivism of sexual offenders, gay men as victims of nonconsensual sex, and a follow-up of rapists assessed in a maximum-security psychiatric facility. Eight papers report on theoretical explanations of sexual offending. Among the topics covered are the relationship between sex ratios in a community and rape rates (power-control theory), a macrosociological analysis of four theories of rape, a phallometric diagnosis of pedophilia, and patterns of sexual arousal and history in a "normal" sample of young men. Nine papers address treatment and management issues for sex offenders. Subjects discussed include child perpetrators of sexual abuse, long-term effects and therapy in cases of incest in childhood and adolescence, the effect of psychiatric labeling on the sentencing of sex offenders, and the multisystemic treatment of adolescent sexual offenders. Chapter tables and references and a name index