In four brief pamphlets, background information concerning aspects of the provision of day care services for infants and young children is directed to (1) policy makers, (2) mass media specialists, (3) academic level workers and professionals, and (4) nurses, midwives, social workers, teachers, and parents. Topics discussed include child development, health and socialization, costs of child care, the basis for establishing child care programs, the organization of day care programs, community responsibility for the organization of day care, and types of day care programs. (RH)