This collection of papers, nineteenth in a series of 20 documents completed by the Children's Environments Advisory Service for the International Year of the Child, 1979, reports on the proceedings of an international symposium held by The Child in the City Programme at the University of Toronto under UNESCO sponsorship, in June 1979. Delegates from 16 nations and a variety of disciplines explored the practical implications of how people can more fruitfully manage the scarce resources of urban space in the interests of children. Discussions focused on how to organize such planning; under what legal, political, and other conditions it can be done, and implications for children that have been documented from past intervention and research efforts. These topics are organized at various levels of scale, including housing, neighbourhoods, cities and regions. Contributed papers point to at least five dimensions that are recognized as crucial to the task of making environments humane for children. These dimensions are the developmental and personal, the spatial, the social systemic, the political and organizational, and idiosyncratic differences such as those related to culture, context and climate. (Author/RH)