Art Nouveau was an art movement that did not stay within a specific medium. As an applied art, it transcended into architecture, and decorative arts. Characterized by flowing curves and stylied movements. It peaked for nearly 15 years.
Theophile Alexandre Steinlen (French, 1859-1923) Chat Noir (French for black cat), one of the best recognized Art Nouveau works, was actually a poster to advertise a 19th century cabaret.
Modern artists also use the Art Nouveau style. Daniel hosts a website showing his work at artofdaniel.com as an illustrator and professional artist. The majority of his illustrations are figurative or abstract.