In the fall of 1373, the city of Florence commissioned Giovanni Boccaccio to give lectures on Dante for the general population. These lectures, undeniably the most learned of all the early commentaries, came to be known as the Expositions on Dante's Divine Comedy . Though interrupted at Inferno XVII, they provide profound, near-contemporary interpretations of Dante's poem and contain, in many ways, some of the most beautiful aspects of Boccaccio's...