 In 2004, their Polaroids taken from 1988 to 2000 were published as a book, "Das Glück ist ohne Pardon / Joy knows no mercy".They treated the genre of the artist's self-portrait to a transformation, distorting their faces with trivial objects such as coat hangers and household utensils, in order to "put to rest the myth of the portrait and the autonomy of the subject it seeks to convey.