Finding subjects in an online library catalog




There are two difficulties with subject headings in a library catalog. For one thing, you must know what the subject heading is before you can search on it. For another, not all libraries use the same subject list. At first, it seems worse than the old complaint that you can’t look up how to spell a word in the dictionary unless you know how to spell it. In the days of card catalogs, patrons had little choice but to make their best guess and hope to find something. College and university libraries, which overwhelmingly use Library of Congress Subject Headings, … Continue reading