In this intense, far-reaching, and poignant book--a book that sums up the work of a lifetime--the acclaimed art historian T. J. Clark rewrites the history of modern art. With the fall of the Berlin Wall, he explains, the project called socialism may have come to an end at roughly the same moment as modernism. Did modernism and socialism depend on each other for their vitality--for their sense of the future and their wish to live in a fully material...