Always check the online catalog first in order to determine whether an individual author has been established, as well as to maintain consistency of classification numbers between individual authors within each literature Generally, classify an individual author's work first by the language used for the work, and only secondarily by an author's country of residence. However, American literature in English, and American literatures in Spanish or Portuguese are classed beginning with both language and country of residence. Consult the index to the Manual for further memoranda concerning the cataloging of biographies or criticisms. Philosophy and theory -01 Dictionaries, etc. Generally, work mark from the main entry .
Past practice indicates that the main entry has most often been used.
For both changes, if an earlier edition exists, continue the old number. A question has been raised about the classification of biographies of literary critics who are not authors of belles lettres . However, this policy has not always been followed and individual author numbers have been established for critics who were not authors of belles lettres. Once a critic has been given an individual author number, biographies of the critic should be classed there. Biographies of critics who are also authors of belles lettres should be classed in the individual author number.