A 45-year retrospective of Ferro's Fluxus-inspired career, including the history of his delicate, gravity-defying sculptures Known for his kinetic mobiles, Austrian sculptor Knopp Ferro (born 1953) traces his artistic roots back to Cologne's Fluxus scene of the 1970s. This publication celebrates Ferro's 70th birthday and provides an extensive overview of his artistic development over the past 45 years.