José Carlos Mariátegui, Latin America’s foremost political thinker and writer, developed a Marxist critique of sociopolitical conditions in 1920s Peru advocating radical change. But his call to develop an inventive critical imagination, a “new spirit,” through innovative forms of expression shows his recognition of revolutionary European politics and avant-garde aesthetics for forging a new political consciousness. Key writings—“El hombre y el mito,” “El problema del indio”—reveal his interconnected political and aesthetic interests, his efforts to construct a Peruvian Marxism resolving the problems of nationhood by embracing intellectuals, workers and peasants alike. This article examines the interplay of Mariátegui’s analytical and imagin...