The elements of abbreviation in medieval Latin paleographyThe elements of abbreviation in medieval Latin paleography / by Adriano Cappelli ; translated by David Heimann and Richard Kay. Lawrence, Kansas : University of Kansas Libraries, 1982. University of Kansas publications. Library series ; 47. iv, 52 p. ; 16 cm.
The brief introduction of Cappelli's Dizionario, translated into English, is a useful starting point for learning the basic conventions of abbreviation marks and signs in use from the early middle ages into modern times.