Abstract art is a form of art that does not attempt to represent reality, but instead focuses on the artist's emotions and feelings. Wassily Kandinsky, Paul Klee, and Pablo Picasso are three of the most famous abstract artists. Kandinsky was a Russian-born painter who is credited with painting the first purely abstract works. Klee was a Swiss-born painter whose works often featured geometric shapes and bright colors. Picasso was a Spanish-born painter who is best known for his cubist works. All three of these artists are considered pioneers in the field of abstract art.