Describes use of personal computer connected to large, multilibrary bibliographic system (Illinois' Library Computer System network) to model an analysis of record duplication across entire system. The pilot project, compressed records, the test database utilizing records from four libraries, and the matching scheme are discussed. Five sources are…

Twenty-one libraries in Library Computer System participated in collection overlap study. Findings of random sample representing 1% of each collection indicate that high percentage of titles, 69.4%, occurred only once in network and that percentage of each library's collection unique to that library, ranged from 6.1% to 68.4%. (21 references) (EJS)

These two reports describe the status of automation in Illinois public school and private and parochial school libraries, particularly relating to shared library resources. Results of a survey of other states' school library automation systems and resource sharing are reported, cataloging is discussed, and access to other databases is examined.…