The Library of Congress has published Draft Genre/Form Terms Manual! https://www.loc.gov/aba/publications/FreeLCGFT/freelcgft.html Library of Congress Genre/Form Terms PDF Files<https://www.loc.gov/aba/publications/FreeLCGFT/freelcgft.html> www.loc.gov The Genre/Form Terms for Library and Archival Materials (LCGFT) is now a separate product but was for several years part of the Library of Congress Subject Headings ... There are some great map terms to help users narrow their searches via facets ... check it out ... (maps and atlases) https://www.loc.gov/aba/publications/FreeLCGFT/GENRE.pdf -Angie Angie Cope American Geographical Society Library UW Milwaukee Libraries 2311 E. Hartford Avenue Milwaukee, Wisconsin 53211 http://www.uwm.edu/Libraries/AGSL Hours: M-F 8:00am-4:30pm [log in to unmask] (414)229-6282 / (800)558-8993 (US TOLL FREE) / (414)229-3624 (FAX) 43°03'8"N 87°57'21"W Like us on Facebook: www.facebook.com/agslibrary Flickr: http://www.flickr.com/photos/agslibrary/