Pablo Picasso Pablo Picasso Pablo Ruiz Picasso (; ; 25 October 1881 – 8 April 1973) was a Spanish painter, sculptor, printmaker, ceramicist, stage designer, poet and playwright who spent most of his adult life in France. 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. Among his most famous works are the proto-Cubist "Les Demoiselles d'Avignon" (1907), and "Guernica" (1937), a dramatic portrayal of the bombing of Guernica
Pablo Picasso exposure to French painting. The generally upbeat and optimistic mood of paintings in this period is reminiscent of the 1899–1901 period (i.e. just prior to the Blue Period) and 1904 can be considered a transition year between the two periods. By 1905, Picasso became a favourite of American art collectors Leo and Gertrude Stein. Their older brother Michael Stein and his wife Sarah also became collectors of his work. Picasso painted portraits of both Gertrude Stein and her nephew Allan Stein. Gertrude Stein became Picasso's principal patron, acquiring his drawings and paintings and exhibiting them in her informal "Salon" at