Ten essays explore the different origins, historical contexts and creative urges behind these collections. Artworks, perhaps more than anything else that one can acquire, are objects of desire and surrealist artworks even more so. The sheer quality of the works acquired (and, in the case of the Pietzsches, still being acquired) is astonishing and, while passionate about their private visions, all the collectors have been mindful of contributing something to the public good. The collections complement each other to an extraordinary degree and allow us to follow some of the artists' careers from beginning to end. By uniting them, exciting new juxtapositions emerge along with a fuller and richer picture of the surrealist movement as a whole.