An analysis of the types of corrections in the Exeter Book and of the technique used to make them will reveal a great deal about how one particularly careful scribe worked, and perhaps more about the working habits of Anglo-Saxon scribes in the general. The most common punctuation mark in the Exeter Book is the point in a raised position, approximately half the height of a minuscule letter above the line of writing. The raised point is used sparingly on approximately one quarter of the folios in the manuscript. Uppercase and lowercase forms are used to indicate the shape of the initial as it appears in the manuscript. It was found upon measuring all the initials in the manuscript that the scribe seems to have had a notional size for a large or a medium size initial—30 and 15 mm.