What is art deco and what is art nouveau?

art deco: a style of design that was popular in the 1920s and 1930s; marked by stylized forms and geometric designs adapted to mass production. Art deco sunburst is a common design. art nouveau: Developed from the 1880s through the early 20th century, flowing designs used with a natural appearance of trees and flowers. hope this helped.

Art nouveau a beautiful style and time end of the victorian and beginning of the Edwardian time and French, look at the Paris metro underground stations, lovely organic free flowing style like Tiffany lamps. The Art deco is around 20's & 30's and a more boxy style, local cinema's had this style, and there was a lot of Egyptian influence as finding King Tut's Tomb fired the imaginations of artist.