The Pontifical Institute of Mediaeval Studies in Toronto has just published Book 1 of Peter Lombard’s Libri sententiarum in English translation by Giulio Silano. Here is the blurb:

PETER LOMBARD
The Sentences – Book 1: The Mystery of the Trinity
Mediaeval Sources in Translation 42. St Michael’s College Mediaeval Translations. 2007. • lviii, 278 pp.
ISBN 13: 978–0–88844–292–5 (ISBN 10: 0–88844–292–0) • $39.95

This volume makes available for the first time in English a full translation of Book 1 of Peter Lombard’s Sentences, the work that would win the greatest teacher of the twelfth century a place in Dante’s Paradise and would continue to excite generations of students well beyond the Middle Ages.

You can see a PDF ad for the book, download a PDF order form for it, or learn more about it and PIMS’s website.