Published in 1981, the Fourth Edition of Glossary of Mapping, Charting, and Geodetic Terms provides detailed information on maps, charts, and associated terms. It is designed to help users at all levels understand and communicate effectively by using the same language with regards to maps and mapping. Terms are alphabetically arranged, and terms with multiple definitions are numbered and, wherever applicable, identified with the appropriate science, discipline, or function in paratheses. At the end of some definitions the user's attention is directed to related terms by the expression "see also.