"Michael Keefer's revised edition of Marlowe's Doctor Faustus is now all the more an indispensable text for students, teachers, and scholars of early modern English drama. It combines immense learning with perfect clarity and accessibility. It gives us a solidly reconceived text and also a brilliant historical introduction that fills each line of this strange and moving play with the sounds of a world in intellectual and religious crisis." - Paul Yachnin, McGill University