subject catalog

In a subject catalog, one has to decide on which classification system to use.

The added numbers appear in the classified subject catalog (though this is not the usual practice in North America).

He checked in the subject catalog and found a single entry for Thorne, Denise.

Until the 19th century, most libraries had closed stacks, so the library classification only served to organize the subject catalog.

Keyword catalog: a subject catalog, sorted alphabetically according to some system of keywords.

He learned about the 'subjects catalog.'