We can tell by looking at medieval leaves that being a scribe didn’t equal being a good artist. So if a manuscript required illustrations, it would have to be sent off to a skilled artist after it was completely copied out. This artist was then charged with adding the proper additions to the text. The scribe copying the manuscript would leave little notes in the margin for the artist. This way the artist knew exactly what was to go were in the manuscript. In some manuscripts, like those below, these notes are still visible.