2
Picasso’s Femme Dans un Fauteuil Rouge, 1929. © 2014 Estate of Pablo Picasso/Artists Rights Society (ARS), New York/The De Menil Foundation, Houston, Texas.
3
Dali’s Study for ‘Premonition of the Civil War’, 1935. © 2014 Salvador Dali. Fundación Gala-Salvador Dali / Artist Rights Society (ARS) / Photographic Archives Museo Nacional Centro de Arte Reina Sofia.
4
Picasso’s Study for Weeping Head. Sketch for Guernica, 1937. © 2014 Estate of Pablo Picasso / Artists Rights Society (ARS). Photographic Archives Museo Nacional Centro de Arte Reina Sofia.