Art deco Style of decoration and design popular in Europe and North America in the 1920s and 1930s. While art deco was an offshoot of art nouveau, art deco was characteristic for using more geometric shapes and designs as opposed to the organic flowing design of its predecessor. In hindsight art deco can be viewed as a rational evolution of art nouveau because the emerging design and art vocabulary lent itself far better to industrial mass production of the 20th century. You can read more about art deco paintings and sculpture here. You can find more about art movements here.