Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. document genres
7. [documents by function]
8. permissions

Anotations

Scope note:

Authorizations for the printing and selling of a particular book or class of books, usually exclusively granted and for a specified period of time. Distinguished from "imprimaturs" which are authorizations to print or publish a work, implying approval or sanction of content, usually in a context of church or government censorship.