American Art encompasses a wide range of artistic expressions that have developed in the United States from the colonial period to the present. It includes various styles and movements, such as American Impressionism, Abstract Expressionism, and Pop Art. Artists like Georgia O'Keeffe and Andy Warhol have significantly influenced the art world, reflecting the diverse culture and history of the nation. The evolution of American Art is marked by its response to social, political, and technological changes. It often incorporates themes of identity, nature, and urban life, showcasing the unique experiences of American society. Institutions like the Smithsonian American Art Museum play a crucial role in preserving and promoting this rich artistic heritage.