The "dandy," a nineteenth-century character and concept exemplified in such works as Wilde's The Picture of Dorian Gray, reverberates in surprising corners of twentieth- and twenty-first-century culture. Establishing this character as a kind of shorthand for a diverse range of traits and tendencies, including gentlemanliness, rebelliousness, androgyny, aristocratic pretension, theatricality, and extravagance, Len Gutkin traces Victorian aesthetic...