Collection-level description (sometimes also: archival description) consists of metadata describing a collection as a whole, in contrast to item-level description (manifestation description in terms of Functional Requirements for Bibliographic Data (FRBR)). The application of collection-level description for national bibliographic agencies may lie in the national bibliography coverage of special material, such as learning objects, Web sites or some types of archival collections like ephemera. Collection-level description for library collections has not been subject to standardisation.