A library catalog (or library catalogue) is a register of all bibliographic items found in a particular
library or group of libraries, such as those belonging to a university system spread out over several geographic locations. A bibliographic item can be any information entity (e.g., books, computer files, graphics,
realia, cartographic materials, etc.), that is considered library material (e.g., a single
novel in an
anthology), or a group of library materials (e.g., a
trilogy), or linked from the catalog (e.g., a webpage) as far as it is relevant to the catalog and to the users (patrons) of the library.
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