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Subject indexing in the visual arts

There remain theoretical and practical difficulties in the subject analysis of visual arts documents and the assignment of appropriate index terms. Visual arts indexing would be aided by an internationally agreed, controlled vocabulary with rules of usage. In devising such a language, subject knowledge and experience of the literature are as necessary as an understanding of indexing theory. Examples of current indexing practice are cited, notably PRECIS, Library of Congress, RILA, and the Répertoire d’Art et d’Archéologie.