<P>Co-founder and co-editor of October magazine, a veteran of Artforum of the 1960s and early 1970s, Rosalind Krauss has presided over and shared in the major formulation of the theory of postmodernism.In this challenging collection of fifteen essays, most of which originally appeared in October, she explores the ways in which the break in style that produced postmodernism has forced a change in our various understandings of twentieth-century art, beginning with the almost mythic idea of the avant-garde. Krauss uses the analytical tools of semiology, structuralism, and poststructuralism to reveal new meanings in the visual arts and to critique the way other prominent practitioners of art and literary history write about art. In two sections, "Modernist Myths" and "Toward Postmodernism," her essays range from the problem of the grid in painting and the unity of Giacometti's sculpture to the works of Jackson Pollock, Sol Lewitt, and Richard Serra, and observations about major trends in contemporary literary criticism.Rosalind E. Krauss is Professor of Art History at Hunter College.</P>