Two parallel streams of work are the subject of this review: (1) the design of a long-range work program and planning process, and (2) the development of analytical techniques which give information about the use of libraries, new or old, and their service areas. The analytical model of library behavior proved illuminating, but is an area of investigation which requires more work. The process of developing the Long-Range Work Program called attention to the fact that the Enoch Pratt Free Library, Baltimore City, is critical to the functioning of the whole regional library complex and that each local library system is a part of the regional whole. The main emphasis of the Long-Range Work Program is on developing a system for long-range planning and budgeting as well as inter-agency cooperation. As such, the research is much more "process-oriented" than "product-oriented." The main emphasis of the Short-Range Work Program is to learn about the effect of library location and other variables upon the use of a library as an aid in location and planning of a new library facility. (MF)