Picasso meets Marie-Thérèse Walter in 1927, she also becomes his lover and muse at the same time. Besides paintings, a vast graphic oeuvre is created, such as first series of etchings. Picasso makes more and more sculpture as of 1928, as well as mixed media objects with wires and assemblages.
Picaso executes the large-size painting "Guernica" for the Spanish pavilion at the world exhibition in Paris in 1937, a haunting anti-war painting, which is seen as the key work of art of the 20th century. The photographer Dora Maar, his new lover, captures the painting's creation.