Pablo Picasso (1881–1973) was a Spanish artist and one of the most influential artists of the 20th century. He is known as one of the founders of Cubism, a movement that revolutionized the way artists could represent reality by breaking up motifs into geometric shapes and showing multiple perspectives simultaneously. Picasso's work ranges from painting and sculpture to ceramics and printmaking, and he constantly experimented with new styles and techniques. Among his most famous works is the painting "Guernica" (1937), a powerful protest against the brutality of war. Picasso was also prolific, creating thousands of works during his long career.