Certain Art Deco works are a type of art that emerged in the 1920s and 1930s. It is characterized by its geometric shapes, bold colors, and modernist designs. The term 'Ertes' is used to refer to the works of Russian-born French artist Romain de Tirtoff, who was a major contributor to the Art Deco movement. His works often featured bright colors, intricate patterns, and stylized figures. Ertes' works are considered some of the most iconic examples of Art Deco.