The Encyclopedia is a unique and universal reference book that introduces a wide variety of issues in the field of social policy, theory and practice of social work, current social legislation. The articles present a scientific understanding of modern trends in the development of social work in the Russian Federation, summarizes the innovative experience of social services for various recipients of services. The proposed publication is a collective scientific work of a large group of scientists, experts, leading specialists in the field of social work, social psychology, social pedagogy, sociology, social management, social economics, demography, law and other industries.