Problems which arise in school library media centers are considered, using the case study method. The 30 case studies cover: problems in child management; the librarian's role in reading instruction and guidance, and in teaching library skills; conflicting opinions on the management and objectives of the media center; the librarian's role and job parameters; library administration problems; attempts at censorship for reasons of alleged obscenity or racial discrimination; and the librarian's relationships with principal, aides, students, teachers, parents, and other librarians. In addition to a bibliography and index, there are extensive appendixes which include information on the Right to Read, library standards, and material selection policies. (LS)