Based on data from a 1979 survey of ARL member libraries, this study by the Office of Management Studies analyzes the responses of selected libraries which had provided internal studies or planning documents on the subject of internal communication and notes the extent of resulting changes in procedures. The studies yielded information on staff communication concerns, especially with respect to personnel development, job effectiveness, and the systematization of communication methods and procedures. Changes in organizational communication patterns resulting from recommendations implemented in the libraries which conducted internal studies centered on these same areas. Though most of the libraries took some action in each area, management and organizational factors affected the success of implementation. Easily implemented recommendations dealt with personnel and job effectiveness issues, while the difficult to implement recommendations were those related to the standardization or centralization of communication functions. Study of the decisions surrounding the adoption of AACR2 revealed that clear management expectations provide a basis for communication between individual service units and establish a central responsibility for the communication of plans and decisions. Suggestions for improving organizational communications in academic libraries are appended. (JL)