Presenting WOLF KAHLEN, one of the pioneers of VIDEO ART since the late 1960s and early 1970s, on the occasion of his 70th birthday and the 25th anniversary of the RUINE DER KÜNSTE BERLIN, the exhibition is a comprehensive retrospective of all 158 video tapes to date: ranging from 'Seven Reversible Processes' (1969) to most recent works, as 'Kissing Chewing and Inhaling' (2009). From the beginning, Wolf Kahlen's interest was to introduce 'time' as a tangible material: a material of nonlinear en… more