In both Latin and English with constant reference to the early printed editions and to quotations by early commentators, this volume examines Tractatus de sphera of Iohannes de Sacrobosco, published c. 1230. This was the clearest, most elementary, and most used textbook in astronomy and cosmography from the thirteenth to the seventeenth century.
Unfortunately, although exhaustively annotated with every word in both English and Latin, they somehow forgot to include any of the illustrations. I'm going to keep an eye out for an illustrated version.