Artist Pablo Picasso was a Spanish painter, sculptor, printmaker, ceramicist, and stage designer who is considered one of the most influential artists of the 20th century. He is known for co-founding the Cubist movement and for the wide variety of styles that he helped develop and explore. Picasso's work is often categorized into periods, with his Blue Period (1901–1904) and Rose Period (1904–1906) being particularly well-known. He also produced a great number of sculptures, prints, and ceramics throughout his career.