The Bodleian Library houses the fifth largest collection of fifteenth-century western printed books (incunabula) in the world. This catalogue describes the books to the same standards expected in the best modern catalogues of medieval manuscripts. It records and identifies all texts contained in each volume, and describes in detail the book's copy-specific features (binding, hand-decoration, marginalia, and provenance). The analysis of the texts is an innovative feature, as is the extensive index of names of authors. The attention given to copy-specific information is distinctive, and the provenance index will be of great value to anyone interested in book history from the 1450s to the present day.