Books, videos and other library materials are assigned Library of Congress (LC) subject headings based on their content. Here is a sample list of film-related subject headings, some of which pertain equally to books and videos (visual materials). When you view catalog records in discoverE, these subject headings display as active links pointing to other items with the same subject.
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Sample Subject Headings
Gays in popular culture (books with the subject "popular culture" frequently encompass mass media)