This document contains several essays on topics of interest to researchers of rehabilitative efforts. The subjects covered include an historical look at chronic delinquents and their treatment programs; a review of West European programs; legal constraints on intervention; a review of evidence concerning biological contributions to criminality and the treatments they suggest; school-based interventions; and a cost-benefit model for comparing early intervention with other methods of crime control. An "Introduction to the Juvenile Rehabilitation Reader" by Peter W. Greenwood is followed by nine articles: (1) "Identifying and Treating Serious Juvenile Offenders: The View from California and New York in the 1920s," by Steven Schlossman and Alexander Pisciotta; (2) "Cycles of Reform in Youth Corrections: The Study of Borstal," by Gordon Hawkins and Franklin Zimring; (3) "Western European Perspectives on the Treatment of Young Offenders," by Gordon Hawkins and Franklin Zimring; (4) "Changing Legal Paradigms in Juvenile Justice," by Marc Miller; (5) "Legal Constraints on Intervention Programs in Public Schools," by Marc Miller; (6) "The Biological Bases of Criminal Behavior," by Michelle Freier; (7) "Treatment Interventions Implied by Biological Factors," by Katherine Van Dusen; "(8) "School-Based Strategies for Delinquency Prevention," by Jackie Kimbrough; and (9) "The Economics of Early Intervention vs. Later Incarceration," by C. Peter Rydell. References and tables are given in some articles. (ABL)