The purpose of this study was to "survey the library resources in the eight Mid-Hudson Counties of Columbia, Dutchess, Greene, Orange, Putnam, Rockland, Sullivan, and Ulster in order to develop a plan of service in which assets would be shared, resources developed, and services extended." Survey data were collected by six questionnaires; visits and evaluations of college, public and special libraries; and a review of the literature of the field. Study findings are presented in sections on the history of the region, the present situation, and libraries of all types. A summary and projections are also included. Thirty-five specific recommendations are made which cover overall planning, public libraries, college libraries, school libraries, central services, and future development. The basic recommendation of the study is that the eight counties of the Hudson Valley be considered as a unified library area, with the Southeastern New York Library Resources Council designated as the agency to work toward integration of all libraries at all levels in the eight counties. Appendixes include tables of survey data, the survey questionnaires, and checklists used in the library evaluations. (JB)