A publication category (novel, poem, dictionary, etc.).
Note: subtitles are not supported on the cover page, but are supported on the cover image page and on any half-title.
Provides an element with a unique name within a single document. This is especially useful in works with extensive cross-referencing and linking, such as dictionaries, encyclopedias, or travel guides. Use of ids simplifies linking and updates.
xml language code.
Always equal to "http://purl.org/dc/elements/1.0/"