Otto Mueller (October 16, 1874 - September 24, 1930). German painter and printer, a member of the Expressionist movement His first works were influenced by Impressionism, Symbolism and Jugendstil. It will turn more towards expressionism after moving to Berlin in 1908. In 1910, he joined the group of Dresden expressionist artists "Die Brücke", until their separation in 1913 due to artistic disagreements. At the same time, Mueller also maintains contacts with the artists of the "Blaue Reiter". Among the Expressionist Otto Mueller is distinguished by lyricism that emerges from his work, whose main subject is the harmony between humans and nature, and is characterized by an elegant simplicity of form, colors and contours. He is especially known for his nudes and portraits of Gypsy.