A summary of statistical information and user service programs provided by the Library of Congress (LC) during the 1977 fiscal year is presented. The Library's Congressional Research Service (CRS) provides immediate response to research queries from members of Congress, as well as undertaking special studies and research projects and holding seminars, workshops, and briefings on public policy issues. LC's computerized information retrieval system, SCORPIO, provides current legislative materials, abstracts of congressional bills, and bibliographies of special materials, and the Major Issues System of CRS prepares special reports and studies on key issues. Services to other libraries include acquisitions and cataloging; a networking study defining LC's role in the emerging national network; and preservation activities, including the publication of a brochure and research into new preservation methods. Services to the general public include answering of research and reference questions with the backup of an extensive research collection; special services to the blind and physically handicapped; a new research facility to open in February 1979 for scholars and artists in the performing arts; dissemination of information regarding copyright laws; the American Folklife Center; and exhibits and public programs. Space problems at LC are briefly described, and tables illustrate the growth of space needed from 1900-1980 and the composition of the library collections in 1976-77. (Author/MBR)