| Value | Description | Notes |
|---|---|---|
| 01 | Product | The title element refers to an individual product |
| 02 | Collection level | The title element refers to the top level of a bibliographic collection |
| 03 | Subcollection | The title element refers to an intermediate level of a bibliographic collection that comprises two or more ‘sub-collections’ |
| 04 | Content item | The title element refers to a content item within a product, eg a work included in a combined or ‘omnibus’ edition, or a chapter in a book |
| 05 | Master brand | The title element names a master brand where the use of the brand spans multiple collections and product forms, and possibly multiple imprints and publishers. Used only for branded media properties carrying, for example, a children’s character brand |
| 06 | Sub-subcollection | The title element refers to an intermediate level of a bibliographic collection that is a subdivision of a sub-collection (a third level of collective identity) |