"The appeal of these materials, and also the obligation to them, lay in the process of inscribing my figurations into these partly normative (lines, writing, numbers), partly accidental (stains, cracks, discolorations), inspired by them and playing with them, of looking into them and fabricating stories, of imprinting my own narratives on the given ones, of allowing the found elements to contribute as the abundance of the picture plane or to express themselves in small quantities as 'background noise'—this was what constituted the appeal of these materials and also an obligation to them. The expression of the sheets therefore always lies between the poles of abundance, being filled, being occupied, and scarcity, brevity, fragment. There are many individual sheets. However, the dense sequence of works leads to variants and variations, groups and series; the inventions complement each other successively and side by side, circling their pictorial themes."

Karl-Heinz Herrfurth in the lecture “Thinking in Pictures - Another Game!”, given at the Berlin University of the Arts on February 3, 1994