@collection-type
Collection, Type of
The <collection-meta> element describes the
bibliographic metadata for a book series, book set, or other book collection of which a
<book-part> is a member. This attribute provides a
publisher-determined name for the “type” of such a collection. Expected values
include terms of publishing art such as “book set”, “book
series”, “book article set”. Some publishers may use this
to specify a particular book series (“Out-of-Door Guidebooks” or
“After-school Investigations”) instead
of a more general type of collection.