As the prevalence and severity of youth violence have risen, so have programs aimed at preventing such violence. We review 30 programs categorized as antiviolence, conflict-resolution, or peace programs, based on goals, target skills, and theoretical constructs. Through empirical evaluations, we designate programs as either promising or effective. After considering the unique aspects of each program, we outline five criteria to guide selection of the best violence-prevention programs for addressing theoretical foundations, comprehensive skills, diverse populations, teacher training, and children's self-worth.