Credits for photos:
Clark, Kenneth. (1976). The drawings by Sandro Botticelli for Dante's Divine Comedy after the originals in the Berlin Museums and the Vatican. Harper & Row, Publishers.
Roe, Albert S. (1953). Blake's illustrations to the Divine Comedy. Princeton University Press.
You can read The Divine Comedy on the 100 Days of Dante website, or you can check out the e-books available below: