1. Autumn in Bavaria, 1908

4. 1906 'Rouault was a deeply religious man, considered by some to be the greatest religious artist of the 20th century. The terrible compassion with which he shows his wretched creatures makes a powerful impression. A savage indictment of human cruelty; she is a travesty of femininity although poverty drives her still to prance miserably before her mirror in hope of work. Yet the picture does not depress but holds out hope of redemption. This work is for Rouault a profoundly moral one. She is a sad female version of his tortured Christ, a figure mocked and scorned, held in disrepute.' From: D Solle, Great Women of the Bible in Art and Literature (Eerdmans 1994)

5. "Then came the awesome Les Demoiselles d'Avignon of 1907, the shaker of the art world (Museum of Modern Art, New York). Picasso was a little afraid of the painting and didn't show it except to a small circle of friends until 1916, long after he had completed his early Cubist pictures. Cubism is essentially the fragmenting of three-dimensional forms into flat areas of pattern and color, overlapping and intertwining so that shapes and parts of the human anatomy are seen from the front and back at the same time. The style was created by Picasso in tandem with his great friend Georges Braque , and at times, the works were so alike it was hard for each artist quickly to identify their own. The two were so close for several years that Picasso took to calling Braque, "ma femme" or "my wife," described the relationship as one of two mountaineers roped together, and in some correspondence they refer to each other as "Orville and Wilbur" for they knew how profound their invention of Cubism was.

11. 1937 The Spanish struggle is the fight of reaction against the people, against freedom. My whole life as an artist has been nothing more than a continuous struggle against reaction and the death of art. How could anybody think for a moment that I could be in agreement with reaction and death? When the rebellion began, the legally elected and democratic republican government of Spain appointed me director of the Prado Museum, a post which I immediatley accepted. In the panel on which I am working which I shall call Guernica , and in all my recent works of art, I clearly express my abhorrence of the military caste which has sunk Spain in an ocean of pain and death...

15. Mondrian imposed rigorous constraints on himself, using only primary colors, black and white, and straight-sided forms. His theories and his art are a triumphant vindication of austerity. Diamond Painting in Red, Yellow, and Blue (c. 1921-25; 143 x 142 cm (56 1/4 x 56 in)) appears to be devoid of three-dimensional space, but it is in fact an immensely dynamic picture. The great shapes are dense with their chromatic tension. The varying thicknesses of the black borders contain them in perfect balance. They integrate themselves continually as we watch, keeping us constantly interested. We sense that this is a vision of the way things are intended to be, but never are.

16. Composition No. 10 1939-42

21. Vladimir Tatlin, Monument to the Third International, 1919-20