This publication has been prepared for use as a textbook for introductory courses in recreation and parks, or for use by students enrolled in undergraduate general education courses in recreation and leisure studies. It is designed to promote an understanding of social, psychological and economic forces relating to work and leisure. Facts and insights into leisure time and leisure time activities are provided with explanations of present and future trends in these areas. Attention is given to the parks and recreation field as a profession. Topics discussed include: (1) an historical overview of the recreation and park movement; (2) trends in professional development; (3) sociological, psychological and physiological implications; (4) federal, state, local, and foreign involvement in recreation and park systems; (5) areas of service and leadership, and leadership characteristics; (6) the economics of recreation and leisure; and (7) future developments. A bibliography of eighty-three citations is included. (Author/MJB)