The purpose of this study was to determine what services and materials are presently being offered to school teachers by public libraries. Sixty sample libraries chosen randomly from all libraries serving 100,000 or more people in Ohio, Pennsylvania, Indiana, Michigan, and Illinois were sent a questionnaire surveying services and materials they offer to teachers in their service areas. The study also looked at the extent to which services are requested and rendered and how these services effect the youth services departments of public libraries. Among study findings are: most librarians surveyed offered a variety of services to the school teachers in their area including class visits to the library, storytimes for classes, library instruction for students, and librarian visits to classrooms; only half of the libraries surveyed provide collections of books for teachers to use in the classroom; most of the librarians had visited the school media centers; and the majority of the librarians communicate with teachers once a month or once a year. The questionnaire used in the study is included in the appendix. (Contains 19 references.) (Author/JLB)