The history of art from the early nineteenth century on- ward is commonly viewed as a succession of conflicts between innovatory and established styles that culminated in the formalism and aesthetic autonomy of high modernism. In Art and Crisis, first published in 1948, Hans Sedlmayr argues that the aesthetic disjunctures of modern art signify more than matters of style and point to much deeper processes of cultural and religious disintegration. As Roger Kimball observes in his informative new introduction, Art in Crisis is as much an exercise in cultural or spiritual...