THE IN-SERVICE TRAINING GUIDE FOR YOUTH SERVICES PERSONNEL WAS DESIGNED TO AID PERSONNEL IN THE PREVENTION AND CONTROL OF ANTI-SOCIAL YOUTH BEHAVIOR. THIS PRACTICAL GUIDE AND TRAINING MANUAL PRESENTS A COMPENDIUM OF IDEAS, SUGGESTIONS, AND TECHNIQUES. THE INTRODUCTION PRESENTS THE BACKGROUND AND PROCEDURES OF THE GUIDE'S PUBLICATION AND DEFINITIONS, TYPES, AND CAUSES OF ANTI-SOCIAL BEHAVIOR. COOPERATION AND INTERACTION MARK THE RESPONSIBILITIES AND ROLES OF THE VARIOUS PERSONNEL INVOLVED. BASED ON THREE FUNDAMENTAL CONCEPTS, GUIDELINES AND PRINCIPLES IN DEALING WITH ANTI-SOCIAL BEHAVIOR WERE PRESENTED FOR STAFF, PROGRAMS OR ACTIVITIES, PROGRAM ADMINISTRATION, COUNSELING, PARENTS, AGENCY, AND POLICE RELATIONS. SPECIFIC PROBLEMS AND SOLUTIONS WERE DISCUSSED CONCERNING SOCIAL FUNCTIONS AND SPECIAL EVENTS, PROPERTY LOSS AND DAMAGE, VIOLENCE, SWEARING, SMOKING, DRINKING, NARCOTICS, BULLIES, HANGER-ON, ETHNIC GROUPS, CLIQUES, GANGS, PROVIDING GUIDANCE, AND AGENCY COOPERATION. UNDERSTANDING THE LANGUAGE OF MODERN YOUTH IS ESSENTIAL, SELECTIONS OF CURRENT TERMS WERE GIVEN AND DEFINED. REFERRAL IS DESIRABLE WHEN SOCIAL ADJUSTMENT PROBLEMS CANNOT BE MET WITHIN A GIVEN PROGRAM, AGENCY INTERACTION IS CRUCIAL. THIS DOCUMENT IS ALSO AVAILABLE FOR $3.00 (PLUS 4 PERCENT SALES TAX) FROM RECREATION AND YOUTH SERVICES PLANNING COUNCIL, 731 SOUTH HOPE STREET, LOS ANGELES, CALIFORNIA 90017. (WR)