This text provides an overview of the processes and procedures associated with developing, maintaining, and evaluating a collection at the building level. It describes the environment of the collection and presents principles, techniques, and common practices of collection development. It also covers collection development, identifies sources of help (e.g., documents, agencies, and associations), and suggests approaches to handling a wide range of situations and demands on the collection. New features include discussions of students' intellectual rights and the First Amendment; copyright regulations; multicultural materials; resources to meet the needs of children with disabilities; the movement from ownership in collections to access of information; resource sharing, such as coordinated collection development; the impact of telecommunications as information delivery systems; and scenarios about censorship situations. In addition, the section on formats has been updated to include CD-ROMs, interact