The Heading is the essence of a catalogue entry. It is the main 'access point for document. For a document, we decide first the heading under which the description can be given. It facilitates the use of the catalogue with ease. Catalogue codes provide the rules relating to the choice and rendering of headings for different types of documents.
The options for the choice mainly lie between the author (person or corporate body) and the title. In order to achieve uniformity in rendering the names of persons or corporate bodies, catalogue codes provide norms for rendering the names; for example, whether surname or forename is to be given first in the heading, etc.