This essay discusses the advantages and limitations of several publishing media--monochrome microforms, online data transmission, and videodiscs. Points to be considered in making a marketable choice as to whether to reproduce material on microform or videodisc are noted. (EJS)

Six articles provide an overview of map librarianship in the United States and highlight the following areas: microphotography, cartography's photographic revolution; major sources for map acquisitions; preservation (processes, equipment, and supply dealers); map collections in public libraries; and suggestions for improvement in map…