Volume xiii of the Corpus of British Medieval Library Catalogues deals with the single most extensive surviving book-list, now Trinity College, Dublin, ms 360. This late fifteenth-century register records 1,837 volumes belonging to St Augustine's Abbey at Canterbury, and was previously edited by Montague Rhodes James. But the new edition contains much more detail than James had opportunity to include, and is edited according to the impeccable standards of the Corpus. It is in some respects a departure from previous Corpus volumes. At 2,356 pages, published in three parts, it is exceptionally long (compare the 433 pages devoted to the 1,444-entry catalogue of Syon Abbey's library, edited for volume ix by Vincent Gillespie). This is due to the inclusion of large amounts of bibliographical data under most of the individual entries: had this material not been printed in a smaller font-size then the enterprise would probably have extended to four volumes. The St Augustine's register also has indications of where individual books were kept within the monastery, and a lengthy index, both of which are carefully edited and printed in part i before the catalogue proper. Part iii is taken up by editions and commentaries on a further seven sources for book-ownership at the abbey, plus a series of appendices and indices. The appendices contain entries and text-titles missing from the register (their reconstruction is a remarkable and important achievement), a list of extant manuscripts from the abbey not recorded in the register, books which may be added to and rejected from the acknowledged list of survivals, a survey of donors of books to the abbey, and, finally, a discussion of annotation in the register itself. The bibliographical data and the appendices turn this into a comprehensive account of book-ownership by and at the abbey. (Indeed, this is the most detailed study attempted of the books of any English medieval institution.) They are full of fresh points of information. The single most important revelation is that TCD, ms 360 is in fact a fresh copy of a register compiled in the second half of the fourteenth century and added to progressively until it became (presumably) too difficult to use. Barker-Benfield has been able to isolate the core of this earlier book-list from later acquisitions: this is important chiefly for what it reveals and suggests about the chronology of book-patronage and cultural interests at a major Benedictine monastery. His discussion of individual patrons – particularly, perhaps, Abbot Thomas Findon (1283–1310: convincingly argued to be the ‘default candidate’ for the ninety-nine inscriptions in the register which record ‘Abbot Thomas’ as the donor) – are exemplary, and quite clearly the product not only of great learning and insight but also a long period of ‘digestion’. The richness and freshness of detail means that there is much in these volumes for medievalists of all persuasions, from palaeographers and art historians to scholars of literature and history in the broadest sense. It ought to become a standard reference work, even for those who do not normally consult the Corpus. Through this account of its books and their use, St Augustine's Abbey receives its due as nowhere else: a cultural centre fascinating in its parts and almost overwhelming as a whole.