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Library catalog

Register of bibliographic items

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  • 7 chapters

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Through Library, Novel and Ledger

The earliest library catalogs were lists, handwritten or inscribed on clay tablets and later scrolls of parchment or paper. As codices (books with pages) replaced scrolls, so too did library catalogs become like handwritten ledgers and, in some cases, printed books. During the late 18th century through mid-19th century, cataloguing on paper slips or cards gradually replaced ledgers and books as the main medium for library catalogs, and in the 20th it was long ubiquitous. The card catalog was a familiar sight to library users for generations. Computerized cataloguing developed gradually from the mid-20th, and by the late 20th and early 21st, it had mostly replaced card catalogs. The advent of the web brought about ubiquitous use of online public access catalogs (OPACs). Some people still informally refer to the online catalog as a "card catalog".

The largest international library catalog in the world is the WorldCat union catalog managed by the non-profit library cooperative OCLC. In January 2021, WorldCat had over half a billion catalog records representing three billion library holdings.

Goal

Antonio Genesio Maria Panizzi in 1841 and Charles Ammi Cutter in 1876 undertook pioneering work in the definition of early cataloging rule sets formulated according to theoretical models. Cutter made an explicit statement regarding the objectives of a bibliographic system in his Rules for a Printed Dictionary Catalog. According to Cutter, those objectives were

  1. to enable a person to find a book of which any of the following is known (Identifying objective):
    • the author
    • the title
    • the subject
    • the date of publication
  2. to show what the library has (Collocating objective)
    • by a given author
    • on a given subject
    • in a given kind of literature
  3. to assist in the choice of a book (Evaluating objective)
    • as to its edition (bibliographically)
    • as to its character (literary or topical)

These objectives can still be recognized in more modern definitions formulated throughout the 20th century.

Other influential pioneers in this area were Shiyali Ramamrita Ranganathan and Seymour Lubetzky.

Cutter's objectives were revised by Lubetzky and the Conference on Cataloging Principles (CCP) in Paris in 1960/1961, resulting in the Paris Principles (PP).

A more recent attempt to describe a library catalog's functions was made in 1998 with Functional Requirements for Bibliographic Records (FRBR), which defines four user tasks: find, identify, select, and obtain.

A catalog helps to serve as an inventory or bookkeeping of the library's contents. If an item is not found in the catalog, the user may continue their search at another library.

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