Designed to assist library managers in conducting effective cost studies, this document provides a summary of the data for the 81 member libraries which responded to a survey of technical services cost studies conducted by the Association of Research Libraries (ARL) in April 1982, and seven reports of such studies. These reports, which range from terse statements of overall costs to detailed time-and-motion studies, with examples of both top-down and bottom-up approaches, are as follows: (1) "Cataloging, Binding, and Processing Costs 1980/81," Syracuse University; (2) "The Year's Work: Resources Used, Benefit/Cost, 1981," University of Maryland; (3) "Projected Cost Study for Technical Services for 1982-83; Unit Activities, Statistics, and Automation Developments; and Staff Costs by Unit," University of Kentucky; (4) "Statement of Desired Data for Determining the Costs of Maintaining RL Catalogs, 1976-77," Research Libraries Group; (5) "Technical Service Division Work Assignments Staffing Profile, 1978," Washington State University; (6) "Cost Study of the Central Technical Services Department; Cost of the Serials Currently Received Process, 1980," Cornell University; and (7) "Review of Collection Policy Alternatives, 1980," New York Public Library. (LMM)