Online and card catalogs provide access to information about those primarily responsible for a recording, such as composers,
authors, actors, speakers, and performers. Searching for a particular person is therefore fairly straightforward. Subject
searching is a little more difficult, requiring knowledge of the intricacies of searching by subject, using headings usually
derived from Library of Congress Subject Headings (LCSH). (For more about subject headings, see General Collections section Library of Congress Subject Headings.)
