some of the group exhibitions and projects hecker has participated in include "push and pull", mumok, vienna, 2010; "evento", bordeaux, thyssen-bornemisza art contemporary, "the kaleidoscopic eye", mori art museum, tokyo, "ubs openings: saturday live: characters, figures and signs", tate modern, london and his most recent collaboration with cerith wyn evans, "no night no day", was premiered at the teatro goldoni as part of "fare mondi", 53rd venice biennale, all in 2009. manifesta 7, trentino - south tyrol, italy, art unlimited, art basel, "experiment marathon reykjavik", reykjavík art museum in 2008, and cerith wyn evans, lenbachhaus, munich in 2006. "off the record", musée d'art moderne de la ville de paris, paris and 3rd berlin biennale, berlin, in 2004, 2nd international biennial for contemporary art, gothenburg, 2003 and "mutations", tn probe gallery, tokyo and "ausgeträumt...", secession, vienna both in 2001.