1939–2012 Artist, painter, draughtsman, graphic artist, photographer, performer. Author of installations and literary forms, including concrete poetry. A graduate of the Sculpture Department of the Academy of Fine Arts in Warsaw (1968). From 1970 he lectured at his alma mater. He was appointed the professor in 1991. From 1980 to 1991, together with his wife Emilia Małgorzata Dłużniewska, he organized exhibitions, lectures and meetings of artists from Poland and abroad, including presentations of the „Fluxus" group. Winner of the Katarzyna Kobro Award (2003) and the Jan Cybis Award (2006). He was a repre- sentative of conceptual art and was particularly interested in linguistics and semiotics.

Works in collections i.a.: CSW Zamek Ujazdowski w Warsaw, National Museums in Warsaw, Wrocław and Poznań, Muzeum Sztuki in Łódź, MOCAK Museum of Contemporary Art in Krakow, Zachęta – National Gallery of Art in Warsaw, Museum of Modern Art in Warsaw, CSW Elektrownia in Radom, District Museum in Bydgoszcz, The National Library in Warsaw.

Selected exhibitions: Foksal Gallery, Warsaw (1977); BWA, Lublin (1988); CSW Zamek Ujazdowski, Warsaw (1991); The Centre of Polish Sculpture, Orońsko (2000); Muzeum Sztuki in Łódź, retrospective exhibition (2005); DAP, Warsaw, art works made by Emilia M. Dłużniewska and Kajetan Dłużniewski (2007); MOCAK Museum of Contemporary Art, Krakow (2012).