He photographed and wrote about the architectural heritage of the Netherlands and of Dutch overseas territories in Asia , the Americas and Africa .
From 1973 to 1986 he was Professor of Architecture and Restoration at the Delft University of Technology .
Professor photographed and wrote about the architectural heritage of the Netherlands and of Dutch overseas territories in Asia , the Americas and Africa .
From 1973 to 1986 he was Professor of Architecture and Restoration at the Delft University of Technology .