hornbook

upright|thumb|Miss Thomas Campion|Campion holding a hornbook, 1661. From Tuer's History of the Horn-Book.

A hornbook (horn-book) is a single-sided alphabet tablet, which served from medieval times as a primer for study, and sometimes included vowel combinations, numerals or short verse. The hornbook was in common use in England around 1450, but may have originated more than a century earlier. The term (hornbook) has been applied to different study materials in different fields but owes its origin to children's education, represented by a sheet of vellum or paper displaying the alphabet, religious verse, etc., protected with a translucent covering of horn (or mica) and attached to a frame provided with a handle.