This Systems and Procedures Exchange Center (SPEC) kit presents the results of a survey of library members of the Association of Research Libraries (ARL) which assessed their perceptions of expert systems and determined their level of expert system development activity; 78 of these ARL libraries returned useable surveys, and 7 submitted planning documents, which are included in the kit. The survey also identified the types of tools used to build the systems, the staff involved in the expert systems projects, the length of time needed to develop the system, the types of knowledge bases and interfaces employed, and the kind of hardware needed to support the systems. It was found that the vast majority of libraries (89%) had not developed an expert system. Of the five libraries that had developed expert systems, four indicated that their systems were used in a reference department. One library indicated that two expert systems were used in a science and engineering branch library; one of these systems was intended for staff training, and the other was used for reference purposes. Although most ARL libraries believe that expert systems will be an important technology in this decade, few are currently developing such systems. It is expected that in the short-term ARL libraries are likely to develop low-cost expert system shells to create small-scale expert systems that deal with very restricted problem areas. One proposal for an expert system and planning documents for six existing systems are introduced by a summary of the analysis of the data and a copy of the questionnaire with a tally of the responses for individual questions. (6 selected readings) (MAB)