A library classification is a system of coding and organizing documents or library materials (books, serials, audiovisual materials, computer files, maps, manuscripts, realia) according to their subject and allocating a call number to that information resource. Bibliographic classification systems group entities together that are relevant to the same subject, typically arranged in a hierarchical tree structure (like classification systems used in biology). A different kind of classification system, called a faceted classification system, is also widely used which allows the assignment of multiple classifications to an object, enabling the classifications to be ordered in multiple ways.
Famous quotes containing the word library:
“Madam, a circulating library in a town is as an evergreen tree of diabolical knowledge; it blossoms through the year. And depend on it ... that they who are so fond of handling the leaves, will long for the fruit at last.”
—Richard Brinsley Sheridan (17511816)