This report deals primarily with the literature involving mid-career changes within the paid labor force. Changes from unpaid to paid employment and the career shift of the housewife who joins or rejoins the labor force are considered, but shifts to unpaid work, volunteer jobs, and early retirement without a second career are not included. The focus of this examination of career change emphasizes a shift in the occupational field to a new career pattern. The information based on a literature review is organized in the following manner: definitions of mid-career change and other related terms; potential interest in mid-career change; historical, sociological, and psychological perspectives on work; theories of adult development and mid-life crisis; policy and reform; and programs to facilitate career change. Research recommendations conclude the report. Annotated bibliographies from several sources are included in the appendixes. (BM)