This guide updates the listing in the 1976 "Bowker Annual of Library and Book Trade Information" with information on new joblines, new services, and changes in contacts and groups listed. Sources listed primarily give assistance in obtaining professional positions; a few indicate assistance for paraprofessionals, although they are usually recruited through local sources. Sections list general sources, library joblines, special library associations and groups, state library agencies, state and regional library associations, library schools, federal library jobs, overseas, freelance librarianship, library personnel interchange, and job hunting. (Author/KP)