Pablo Picasso is commonly regarded as one of the most influential artists of the 20th Century, changing our way of seeing with his radical innovation and revolutionary approach. As pioneer of Cubism, godfather to the Surrealists, and creator of the enduring anti-war painting Guernica, he produced thousands of paintings in his lifetime, not to mention his sculptures, ceramics, stage designs, poetry and plays. Rajan Datar discusses his life and work with curators Ann Temkin and Katharina Beisiegel, and art historian Charlie Miller. (Photo: Pablo Picasso in 1955. Credit: Hulton Archive/Getty Images)