Robert Longo's mastery of charcoal drawing has made him one of America's most admired artists. With every new work he reinvests the tradition of history painting with fresh relevance and impact, rendering majestic, era-defining images in a sensuous and sculptural photorealism. Longo's sense of both literal scale and historical scope is monumental, as a survey of his numerous serial works soon reveals: the Freud Drawings cycle of 2000 with its large-format treatment of Edmund Engelmann's photographs of Sigmund Freud's Vienna apartment, taken days before Freud's departure for London; or...