A survey of the present service and future needs of the Whitby Public Library in Ontario, Canada was undertaken, and a new library building was planned. Part I describes the historical background of Whitby, the role of the present library in local history, the growth of the Town of Whitby from a population of 2,300 to 20,000, and the philosophy on which the proposed new library should be based--which includes maintaining close contact with the Central Ontario Regional Library, service to industry and students, and service to the local Ladies College and the Whitby Psychiatric Hospital. Because of the sizable number of foreign born residents, an emphasis on books and materials on English as a second language is proposed. Whitby's present bookstock and circulation compares unfavorably with the minimum standards accepted by Canadian libraries. Part II describes in some detail the function, size, staff, general layout, space relationships and utilization, proposed categories and collection size, and the furniture and equipment for the proposed new library. (KKC)