of reality that cannot be seen by the naked eye. In 2006, Richter conceived six paintings as a coherent group under the title Cage, named after the American avant-garde composer John Cage. The Cage paintings are large works constructed from intersecting fields, lines, and swaths of uneven smears that reflect the broad squeegee tool which Richter drags across the canvases, before removing areas of paint to generate a subtractive method of concealing and revealing variegated layers and patches. In May 2002, Richter photographed 216 details of his abstract painting no. 648-2, from 1987. Working on a long table over a period of several weeks, Richter combined these 10 x 15 cm details with 165 texts on the Iraq war, published in the German Frankfurter Allgemeine Zeitung newspaper on 20 and 21 March. This work was published in 2004 as a book entitled War Cut. In November 2008, Richter began a series in which he applied ink droplets to wet paper, using alcohol and lacquer to extend and retard the ink's natural tendency to bloom and creep. The resulting November sheets are regarded as a significant departure from his previous watercolours in that the pervasive soaking of ink into wet paper produced double-sided works. Sometimes the uppermost sheets bled into others, generating a sequentially developing series of images. In a few cases Richter applied lacquer to one side of the sheet, or drew pencil lines across the patches of colour. Color chart paintings As early as 1966, Richter had made paintings based on colour charts, using the rectangles of colour as found objects in an apparently limitless variety of hue; these culminated in 1973–4 in a series of large-format pictures such as 256 Colours. Richter painted three series of Color Chart paintings between 1966 and 1974, each series growing more ambitious in their attempt to create through their purely arbitrary arrangement of colors. The artist began his investigations into the complex permutations of color charts in 1966, with a small painting entitled 10 Colors. The charts provided anonymous and impersonal source material, a way for Richter to disassociate color from any traditional, descriptive, symbolic or expressive end. When he began to make these paintings, Richter had his friend Blinky Palermo randomly call out colors, which Richter then adopted for his work. Chance thus plays its role in the creation of his first series. Returning to color charts in the 1970s, Richter