The titular essay in this volume of work by Thomas De Quincey centers on the notorious career of the murderer John Williams, who in 1811 brutally killed seven people in London's East End. De Quincey's response to Williams's attacks turns morality on its head, celebrating and coolly dissecting the art of murder and its perfections. This volume also contains De Quincey's best-known piece of literary criticism, "On the Knocking at the Gate in Macbeth,"...