This booklet summarizes fiscal year 1986 activities of the Library of Congress (LC) in the following areas: (1) LC administration; (2) collection development; (3) activities of the Copyright Office; (4) housing the collections; (5) accessing the collections; (6) automation; (7) preservation; (8) services to Congress performed by the Congressional Research Service; (9) Law Library services; (10) responsibilities of the Assistant Librarian for National Programs; (11) providing information and services to visitors, including activities of the Visitors' Center, the Special Events Office, and the Information Office; (12) services of the National Library Service for the Blind and Physically Handicapped; (13) public programs such as music performances, symposia, motion picture screenings, dramatic readings, and exhibits; (14) programs sponsored by the American Folklife Center; (15) activities of the Center for the Book; and (16) publications. Photographs accompany the text throughout the publication. (KM)