The Penn Commentary on Piers Plowman, Volume 1"A work of enormous importance. Of all the poems of the English Middle Ages, Piers Plowman is the one that most deserves and needs annotation of the fullest and best possible kind, both because it is a text of unrivaled literary quality and interest, and because it is characteristically knotty and deploys a language of unusual richness, density, and allusiveness. Much of this allusiveness is to areas of learning that are not at every modern reader's