«Knastzeichnungen» is a drawing study as a result of Andreas Züst's short prison stay in the beginning of the 1980s, presumably 1983. The drawings, mostly A4 sheets, speak very clearly for themselves: the series, drawn on white paper with graphite, felt pen and possibly coal, show detailed drawings of the prison's interior fittings, frottages of different surface structures inside the cell, artistic-philosophical thoughts on the topic of punishment and sketched escape fantasies. It is a series which once again proves Andreas Züst to be an artist to whom, in his phenomenological work, a prison cell can be an insight.