Taught in elementary schools, high schools and a full-time civil and adult
education centers until 1989.
Presented by multimedia and lighting installations in many concerts and events. Implemented an Internet connection v.2002 May Lehtimäki's Hungary exhibition and studio exhibition of months between 08/26/2004 and has presented over the Internet via a studio camera Töölönlahti solar wind sculpture exhibition.
Similarly, presented on the Internet in summer 2005 exhibition Retretti own studio and exhibition in July and August on Sundays. Organized an international symposium on light art exhibitions and magazine hill in the summer of 2006, and Kepes Group and experts in their own works in the summer of 2007, 2008 and 2009. Provide a number of land and environmental art events of the artistic director.
Participated in domestic and foreign exhibitions since 1969. Manufactured by more than 80 public works, of which approximately 10 playground or playground sculpture, and about 30 public lighting works.
Also be used for video, lighting, laser and computer technology, and has participated in arts events between as several concerts in Finland and in the international light art symposium in Hungary in 1996, 1999, 2001, 2003 and 2004. Multimedia "northern lights", repetitive motion Retretti rock hall's summer exhibition 2005 and "Cave" multimedia in a large underground cavern of Tytyri in 2007.
Ostrobothnia Museum, Aaltonen Museum, Museum of Contemporary Art in Tampere, Lahti Art Museum, K.H. Renlund Museum, Kuopio Art Museum, Kerava Art Museum, Nelimarkka Museum, the Nordic collections, in several towns in the collections of both commercial and industrial establishments in collections in Denmark and Norway, and Kepes collections in Hungary.