Long out-of-print since its first edition in 1970, Robert Filliou’s ‘work in continuous progress’ remains an essential primer to the artist’s still radical ideas on participatory art making and teaching. Along with extensive writing by Filliou, the book includes interviews with numerous artists close to him, such as Joseph Beuys, George Brecht, John Cage, Dorothy Iannone, Allan Kaprow and Diter Rot. This edition is an exact facsimile of the original, in order to preserve its highly inventive bilingual (English/German) layout and idiosyncratic composition.