What are the main differences in style and philosophy between Art Nouveau and Art Deco, and how did each movement reflect the cultural and technological changes of its time?
Who are some of the most influential artists and designers associated with Art Nouveau, and how did their works contribute to the defining characteristics of the movement?
How did Art Deco incorporate elements from various global art forms and movements, and what impact did this have on its international popularity during the 1920s and 1930s?
In what ways did the economic and social changes following World War I influence the transition from the ornate style of Art Nouveau to the streamlined aesthetics of Art Deco?
Can you identify key examples of architecture or decorative arts that exemplify the Art Deco style, and explain how these examples illustrate the movement's emphasis on modernity and luxury?
3. **How did historical events and societal changes in the late 19th and early 20th centuries influence the development and popularity of Art Nouveau and Art Deco?
