Wolf Kahlen (*1940 in Aachen, lives in Berlin) is a performance and media artist and a video art pioneer. Kahlen is a founding member of the n.b.k. Video-Forum, which opened in 1971 with the presentation of his work Reversible Prozesse. In his artistic practice, Kahlen deals with moving images and media in an analytical and critical way.
- Reversible Prozesse (n.b.k. Koproduktion)