The document discusses the importance of developing and maintaining a collection development policy for a school library. It outlines the key components that should be included in a CDP, such as the mission statement, selection criteria, and weeding plan. It emphasizes that establishing a CDP should be a top priority for any new school librarian. The document also covers several other important aspects of developing a school library collection, including reference services, intellectual freedom, cataloging standards, and promoting access and use of library materials.