Since the 1960s the artists Henri Chopin, Guy de Cointet and Channa Horwitz have been exploring systems of meaning in their own ways in their works, uncovering the rules that tie these systems together. They deduce sets of rules from seeming accidents and consolidate them into visible structures. For the first time, the drawings of these three internationally respected artists are now presented in Germany: Horwitz—working on the boundary of symbols and performance—developed a drawing method based on mathematic principles, in order to visualise time and motion. Chopin—a key figure in French visual poetry and sound poetry—explored the relationship of chaos and order with his typewriter poems and Cointet—the »Duchamp of Los Angeles«, left behind numerous drawings full of codes and puzzles, in which he transformed meanings into visual signifiers. The book is published on the occasion of the exhibition »Anton Voyls Fortgang / A Void. Henri Chopin, Guy de Cointet, Channa Horwitz« in the Kunsthalle Dusseldorf, 2013.