Although it is more than sixty years since Georges Bataille undertook his philosophical development of the term <i>informe</i>, only in recent years has the idea of the "formless" been deployed in the theorizing and reconfiguring of twentieth-century art. In <i>Formless: A User's Guide</i>, Yve-Alain Bois and Rosalind Krauss present a rich and compelling panorama of the formless. They chart its persistence within a history of modernism that has always repressed it in the interest of privileging formal mastery, and they assess its destiny within current artistic production. In the domain of practice, they analyze it as an operational tool, the structural cunning of which has repeatedly been suppressed in the service of a thematics of art. Neither theme nor form, formless is, as Bataille himself expressed it, a "job." The job of <i>Formless: A User's Guide</i> is to explore the power of the <i>informe</i>. A stunning new map of twentieth-century art emerges from this reconceptualization and from the brilliantly original analyses of the work of Jackson Pollock, Andy Warhol, Cy Twombly, Lucio Fontana, Cindy Sherman, Claes Oldenburg, Jean Dubuffet, Robert Smithson, and Gordon Matta-Clark, among others.