This booklet is one of a series of publications designed to present a complete system for planning, organizing, and directing the development and operation of individual volunteer programs, as well as the management of a comprehensive volunteer system consisting of many individual programs. This particular booklet explains the overall system and discusses its major components. Chapter 1 presents a brief overview of a Volunteer Services System (VSS); chapter 2 discusses the information needs of a VSS; chapter 3 examines the three major subsystems of a VSS; and chapter 4 offers recommendations for managing a VSS. A bibliography of relevant publications is also included. (JG)