Codices Boethiani is a catalogue of all the Latin manuscripts of the works of Boethius, including his translations of Aristotle and Porphyry. When completed, it is expected to comprise seven volumes arranged geographically, and a general index (although each volume will also be indexed separately). The conspectus includes fragmentary texts, as witnesses to once-complete versions, but not excerpts, abbreviations and vernacular translations. Each entry comprises a short physical description of the manuscript, a complete list of contents, a note of any glosses present, a brief summary of any decoration, the provenance of the manuscript and a select bibliography. Particular attention is paid to the use of the manuscripts. Since Boethius was a pillar of artes teaching, these manuscripts give a particularly interesting insight into who was taught what, where, to what level, and in what way. The three volumes published so far are: I Great Britain and the Republic of Ireland (WI Surveys & Texts 25) ; II Austria, Belgium, Denmark, Luxembourg, the Netherlands, Sweden and Switzerland (WI Surveys & Texts 27) ; and, III Italy and the Vatican City (WI Surveys & Texts 28) . The number of Boethian manuscripts in the Iberian Peninsula is modest compared with those in the British Isles and Italy, partly, perhaps, because of the Arab domination there; the oldest manuscripts come from Ripoll in Catalonia, which was always under Christian control. The Portuguese manuscripts contain 5 Boethian items, the Spanish, 153, of which the De Consolatione Philosophiae occurs most often. Some of these manuscripts are of exceptional quality, and many of them include extensive glosses.