How to Be Avant-Garde"Art has poisoned our life," proclaimed Dutch artist and De Stijl cofounder Theo van Doesburg. Reacting to the tumultuous crises of the twentieth century, especially the horrors of World War I, avant garde artists and writers sought to destroy art by transforming it into the substance of everyday life. Following the evolution of these revolutionary groups, How to Be Avant Garde charts its pioneers and radical ideas. From Paris to New York, from Zurich