This is the first handbook on medieval glossography. Written by acknowledged experts in the field, the work introduces the reader to the subject and history of glossography, and in a comprehensive documentation section it provides an overview of glossed texts, of the chronological and geographical distribution of glossed manuscripts and of the quantity of texts involved. There is a detailed treatment of the codicological and palaeographical aspects of the glosses, interlinear glosses and glossaries are presented either using exemplars or providing overviews, and there is a discussion of the bo