Marks made in margins of book pages
This piece of Wahrheit und Dichtung by Melchior Kirchhofer has pencil notes that might have been written by Josef Eiselein.
The Glosas Emilianenses are glosses added to this Latin codex that are considered the oldest surviving phrases written in the Castilian language.
A page from an illuminated Armenian manuscript with painted marginalia
Marginalia (or apostils) are marks made in the margins of a book or other document. They may be scribbles, comments, glosses (annotations), critiques, doodles, drolleries, or illuminations.