Geometric shapes were not a characteristic of the Art Nouveau movement, which was characterized by its use of organic forms, flowing lines, and bright colors.

Victor Horta is considered to be the father of the Art Nouveau movement. He was a Belgian architect who designed a number of buildings in Brussels, including the Hôtel Tassel, which is considered to be the first Art Nouveau building.

Vincent van Gogh was not associated with the Art Nouveau movement. He was a Dutch post-impressionist painter who died in 1890, before the Art Nouveau movement began.

L'Art Nouveau was the name of the Art Nouveau magazine founded by Siegfried Bing in 1895. It was one of the most important magazines of the Art Nouveau movement and helped to spread its ideas throughout Europe.

The Hôtel Tassel is an example of Art Nouveau architecture. It was designed by Victor Horta in Brussels and was built between 1893 and 1895. It is considered to be the first Art Nouveau building.

Art Nouveau jewelry, Secessionist jewelry, and Jugendstil jewelry are all names for the Art Nouveau style of jewelry that was popular in the late 19th and early 20th centuries.

Henri de Toulouse-Lautrec, Aubrey Beardsley, and Alphonse Mucha were all known for their Art Nouveau posters.

Art Nouveau furniture, Secessionist furniture, and Jugendstil furniture are all names for the Art Nouveau style of furniture that was popular in the late 19th and early 20th centuries.

Louis Comfort Tiffany, René Lalique, and Émile Gallé were all known for their Art Nouveau stained glass windows.

Art Nouveau ceramics, Secessionist ceramics, and Jugendstil ceramics are all names for the Art Nouveau style of ceramics that was popular in the late 19th and early 20th centuries.

René Lalique was known for his Art Nouveau metalwork. He was a French jeweler and glassmaker who designed a wide variety of Art Nouveau objects, including jewelry, vases, and lamps.

Art Nouveau glass, Secessionist glass, and Jugendstil glass are all names for the Art Nouveau style of glass that was popular in the late 19th and early 20th centuries.

William Morris, Walter Crane, and Aubrey Beardsley were all known for their Art Nouveau textiles.

Art Nouveau wallpaper, Secessionist wallpaper, and Jugendstil wallpaper are all names for the Art Nouveau style of wallpaper that was popular in the late 19th and early 20th centuries.

Thomas Cobden-Sanderson, Douglas Cockerell, and Sydney Cockerell were all known for their Art Nouveau bookbinding.