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. instructional materials
9. primers (books)

Anotations

Scope note:

Primers of cardboard or wood, consisting of two or three pages with the alphabet, numbers, simple text, and sometimes pictures printed or impressed upon them and often varnished for protection. Distinguish from their predecessors, "hornbooks," which are primers consisting typically of a sheet of parchment or layer of paper mounted on a thin wooden board and protected by a sheet of transparent horn.