26.0 Number of headings
The number of headings assigned to each work depends on the nature of its content and the structure of available subject headings. Certain categories of works are generally not assigned any subject headings. Many works are assigned only one heading. In other cases, multiple headings are required. In general, no more than ten headings are assigned to any one work.
26.1 Works requiring no subject headings
26.2 Uniform heading vs. duplicate entry
26.3 Single entry vs. doubling
26.5 Works on single topics with multiple elements or aspects
See also: