**What are the defining characteristics of Art Nouveau, and how do they distinguish it from other artistic movements of the late 19th and early 20th centuries?
Can you discuss the role of Art Nouveau and Art Deco in the world of fashion and jewelry design, and how these styles continue to influence contemporary trends in these industries?
In what ways did the materials and techniques used in Art Nouveau differ from those used in Art Deco, and how did advancements in technology during the early 20th century impact these movements?
How did the cultural and historical context of the early 20th century influence the emergence and evolution of Art Deco, especially with regard to its widespread adoption in architecture and design?
Who were some of the most influential artists and designers associated with the Art Nouveau movement, and how did their work contribute to the development of the style?
How did the Art Deco movement reflect the technological advancements and societal changes of the early 20th century, particularly in architecture and industrial design?