The horn-book was a precursor to the primer, a tool that taught children their letters, how to read, and gave a catechetical lesson. As such, fixed to the paddle was a sheet of parchment or vellum upon which was scribed the alphabet, Arabic numerals, and a prayer, usually the Lord’s Prayer or the Trinitarian Formula. Some forms include a syllabary, a table teaching syllabic letters, as well.
Facsimile hornbook (top right) and gingerbread hornbook mold (bottom middle) handcrafted by artist and scholar Gene Wilson of HOBI Cookie Molds and Hornbooks.