Designed to be useful for the assessment of existing collections and facilities as well as for planning new libraries, these guidelines detail specific needs, considerations and possibilities, and specifications for both materials and area planning. The materials section includes separate treatment for various types of books and other publications, art objects and realia, and audiovisual materials and equipment. Area planning is broken down by age group and functional area, including work areas for staff and program rooms. Also included are a list of behaviors observed in children's rooms, factors to be considered in determining book collection size, and an audiovisual philosophy statement. (RAA)