Yve-Alain Bois and Rosalind E. Krauss convincingly introduce a new constellation of concepts to our understanding of avant-garde and modernist art practices. In Formless: A User's Guide, Bois and 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.