Reports on a study in the public libraries of Champaign and Urbana, Illinois, to determine whether public library circulation of a sample of books will be greater for those volumes displayed in a prime location than for those in their regular places on the shelves. (FM)

Reports the findings of a six-year West Virginia University study that tested the "direct access" debate in its main library after undergoing the transition from closed to open stacks. Circulation, book availability, and search and library-use statistics are provided, and their implications are discussed. (Author/JD)

Library collection weeding criteria based upon unequal distribution of demand require that distribution remain stable over time. A mathematical expression is derived that tests that stability. Verification is not inordinately time consuming and is facilitated by the use of automated circulation systems. (Author/RAA)

Reports a study of the distribution of use among users of a short loan collection in an academic library. Results indicate the most active one-third of all users generate between two-thirds and three-quarters of all use. A brief list of references is provided. (Author/SW)

Discussion of the cyclic nature of library use focuses on the use of spectral analysis to identify periods in library circulation series and pickup for shelving at the State University of New York at Buffalo. The theoretical context of time and frequency domains is presented. (Author/LRW)

A founder trustee of OCLC recounts the steps toward automation of library catalogs encountered during his career, from the use of punched cards in a circulation system to the implementation of online union catalogs. (CLB)

A theoretical foundation is provided for a method of identifying those books in a library's stack that determine any given percentage of the current circulation. Basic components and requirements of the technique are described, and the theory is applied in an example that manipulates data from a university library. (Author/MBR)

Describes a book availability study using the ACCESS retrieval and delivery system for the evaluation of library services. (CWM)

Extracts five conclusions from a survey of library material use studies: (1) recorded use in many libraries is low; (2) use within the library parallels circulation; (3) past use predicts future use; (4) recent materials are used more frequently; and (5) Americans use few foreign language materials. (FM)

This analysis of the circulation records of books added to a psychiatric library from July 1983 through May 1985 reports the total number of books circulated, their number and percentage in specific subject areas, missing titles, and usage by in-house and off-site borrowers. Implications for future collection development are explained. (Author/EM)

This essay relates the economic cycle, unemployment, and inflation to reading habits and public library circulation. Highlights include recent English sociological study and its implications for current increases in public library use, future library use, effect of the economy on kind of public library use, and reasons why people read. (EJS)

Correlation structure of the Burrell and Cane mixed Poisson model for library loans with aging is presented and illustrated by data from University of Sussex. The approach is compared and contrasted with that originally formulated by Morse and recently reevaluated by Beheshti and Tague. Directions for future investigations are suggested. (Author)

Develops an empirical model for predicting the size of an information store necessary to satisfy specified levels of demand. A method for selecting items for retirement with the least adverse impact on the store is suggested. Three tables, three figures, and a 10-item reference list are included. (Author/JL)

A study of patron use of the University of Illinois online circulation system (LCS) found that 56 percent of original known item searches and 86 percent of location searches were successful, and that graduate students use the system very differently from the way undergraduates use it. (FM)

Reports the results of a study which examined the need for and use of both academic and professional materials in library collections for professional education. The measures used included proportions of materials in an existing business collection, and comparisons of patron use and obsolescence rates of academic and professional materials. (CLB)