This report summarizes the activities of the South Carolina State Library for 1998-1999. Sections include: (1) library governance and mission statement; (2) brief library history; (3) details about the organization and operations of the library, including a description of each of the six service departments, a list of library staff, highlights of the year, and a financial statement chart indicating expenditures; (4) data on library services, including services to state government, interlibrary loan, state documents depository system, services to the blind and physically handicapped, and state library loan statistics; (5) a statistical summary of library materials and description of special collections; (6) library development, including consultation services and grant administration; (7) an update on the South Carolina Library Network; (8) public information services activities; (9) data on volunteer program participation; and (10) a list of recent state library publications. Appendix 1 contains directories of public library Board Chairmen, South Carolina public libraries, college and university libraries, and state institutional libraries. Appendix 2 contains a statistical summary table for 1998-1999. Includes statistical tables. (AEF)