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. information artifacts
7. [information artifacts by physical form]

Anotations

Scope note:

Any items that communicate information primarily visually and are collected and made available as information resources. For items that communicate information primarily visually and are used as teaching aids, use "visual aids."