1928- 1933-1996 1942- 1965- 1967- 20thcentury 21stcentury abandonedbuildings american art artistic artists arts biography california catalogs christian criticismandinterpretationflavin criticismandinterpretationtagwerker criticismandinterpretationturrell dan exhibitions flavin gerold herdeg installations(art) interviews irwin james landscapephotography lichtkunst light lightanddarkness lightinart minimalart modern musicinart nightinart olafureliasson photography pictorialworks projectionart psychologicalaspects publicart robert shadesandshadows southern space(art) turrell unitedstates visualperception