The book defines functional and categorical approaches to needs of developmentally disabled citizens, compares the current with the ideal service delivery system, describes approaches for effective advocacy efforts, and includes a resource guide for Californians. Seven functional definitions of such terms as self care, mobility, and capacity for independent living are followed by six categorical definitions of specific disabilities including mental retardation and cerebral palsy. Next, the concepts of individualization, normalization, and the developmental model are applied to seven in-home services such as respite care and in-home training; aspects of special education including instructional approaches, support services, and vocational programs; and different levels of independent living situations for adults. Finally, four kinds of advocacy (individual, parent-to-parent, parent-to-person, and group) are described in respect to needed changes such as reallocating poorly spent resources in community-based services and utilizing a hierarchy of tactics to effect change. The resource guide includes address lists for resource centers, area boards, and individual advocacy groups. Sample case studies are provided. (MC)