Key themes: Geometry, light, anti-ornamentation, openness, glass and steel
International Style honors simple, honest, and clear design. In the United States, many architects, like Louis Sullivan, Frank Lloyd Wright, and Irving Gill, practiced this design. Their buildings embodied many of the requirements of the movement: rectilinear forms, light, taut plane surfaces, anti-ornamentation, open interior spaces, cantilever construction. Usually, the International Style buildings and designs would include glass, steel, and reinforced concrete. The trend can also be seen in the anti-ornamentation and aerodynamic styling of the cars during the era.