The B-version of Piers Plowman, probably the only version authorised by Langland, is the one most frequently read today, and the most influential form of the poem. This catalogue of the 18 extant manuscripts, now located in Cambridge, London, Oxford, Tokyo, and San Marino, California, offers both individual manuscript descriptions and a record of the annotations. The new and detailed codicological descriptions include information on provenance and ownership; a full list of the contents; and a description of the physical make-up and the presentation of each manuscript. The substantial first...