Nathaniel Hawthorne, celebrated in his own day for sketches that now seem sentimental, came only gradually to be fully appreciated for what his friend Herman Melville diagnosed as the "power of blackness" in his fiction - the complex moral grappling with sin and guilt. By the 1850s, Hawthorne had already been accepted into the American canon, and since then, his works - especially The Scarlet Letter -- have remained ubiquitous in American culture. Along with this has come an explosion of Hawthorne criticism, from New Criticism, New Historicism, and Cultural Studies to queer theory, feminist...