Mammonart: An Essay in Economic Interpretation by Upton Sinclair examines the influence of economic forces on art and creativity throughout history. Sinclair argues that art is not created in a vacuum but shaped by class, wealth, and patronage, often serving the interests of the powerful. From ancient civilizations to modern times, he analyzes writers, painters, and musicians, revealing how financial dependence on the elite suppresses radical or truthful expression. Advocating for art that serves the people and promotes social justice, Sinclair challenges the myth of artistic independence. Blending sharp critique with historical insight, Mammonart is a provocative call for economically conscious art and a radical rethinking of culture in capitalist society.