This comprehensive guidebook (written in both English and German), pertains to various aspects of planning and designing playgrounds and community centers. The introductory chapter discusses the educational and formative aspects of playgrounds, city planning prerequisites, and the effects of sociological conditions before initial planning is begun. The main body treats traditional children's playgrounds, grouped according to type, and leisure centers for young and old. Many of the latest examples are included, particularly those from the United States. Special projects such as therapeutic playgrounds for children's hospitals are illustrated, as well as experimental schoolyards. A section is also included on playground equipment, with special emphasis given to structures that stimulate the creative imagination of the child. Photographs and diagrammatic representations are presented throughout. (FS)