This report analyzes some of the data from documentation submitted by the individual states for federal financial assistance through the Library Services and Construction Act to meet public library construction needs between 1965 and 1978. The impact of the LSCA library construction program is described in terms of the cutting of costs, the population affected, and the numbers and types of projects funded. The main goals of construction--increased space, seating capacity, and book volume capacity--are discussed in terms of the improved library services they have fostered. The other priorities of LSCA--reaching isolated rural areas, and meeting special information needs of library patrons--are discussed in terms of their fulfillment by construction funding. Several construction projects and their resulting service improvements are included to illustrate this relationship. Summaries of LSCA program highlights and future trends are followed by tables presenting expenditures by state and funding source, as well as by population density and type of construction; population served through the projects; number of projects; and affected floor area, added seating capacity, and added book volume capacity by state, population density, and type of construction and library. (MBR)