This study examines data reflecting the actual impact during the first 3 years of use of the second edition of the Anglo American Cataloging Rules (AACR2) in one library, and compares them with a 5-year projection done in 1980. Findings showed the impact was close to the projection. (Author/EM)

This article focuses on storage models for libraries, first considering the Dewey classification system from this perspective and then summarizing more current research carried out under the direction of the author with a grant from the National Science Foundation. (33 references) (Author/NH)