Director Glenn Lowry writes in the catalogue forward that "Dieter Roth was an endlessly inventive and thought-provoking artist whose substantial body of work, made over the course of nearly five decades, is both prodigious and idiosyncratic. In his experiments with forms, materials, and language, Roth challenged the boundaries not only between mediums but between art and everyday life." Curator Sarah Suzuki writes that "it is easier to describe what he is not than what he is : Above all, he is not a propagandist, and he is not a prophet. He is neither a moralist nor an immoralist. And he is no joiner...He is a member of no ism, group or movement, although many movements, groups, and isms would like to claim him as one of their own." -- Source of annotation: Marvin or Ruth Sackner.