Secessionism refers to a movement in the late 19th and early 20th centuries, where groups of modernist artists split from established schools and thoughts of Art. This first started in Paris and Munich, before moving onto Vienna, Berlin and finally, Cologne. The best known ‘Secessionist’ movement happened in Vienna and led to the birth of Art Nouveau.
Art Nouveau is inspired by natural forms and structures, like plants, flowers and curved lines. Art Nouveau grew out of the Arts and Crafts movement (although it formed alongside the latter half of this movement) and the designs of William Morris.
Joseph Hoffman, an artist of the Vienna Secessionists, broke away from the Art Nouveau movement to form the Wiener Werkstätte, the Austrian version of the Arts and Craft Movement.