Pablo Picasso (1881-1973) was a Spanish painter, sculptor, printmaker, ceramicist, stage designer, poet and playwright. Regarded as one of the most influential artists of the 20th century, he is known for co-founding the Cubist movement, the invention of constructed sculpture, the co-invention of collage, and for the wide variety of styles that he helped develop and explore. Picasso used colour as an expressive element, but relied on drawing rather than subtleties of colour to create form and space. Picasso demonstrated a stylistic versatility that enabled him to work in several styles at once. Although his Cubist works approach abstraction, Picasso never relinquished the objects of the real world as subject matter. The autobiographical nature of Picasso’s art is evident in his habit of dating his works, often to the day.