2009 - 2014
- Professor, Staatliche Akademie der Bildenden Künste Karlsruhe, Germany

2009
- Visiting Artist, Maryland Institute, College Of Art, Baltimore, Md. USA
- Artist in Residence, Nirox Foundation, South Africa 

2008
- Vertretungsprofessor, Staatliche Akademie der Bildenden Künste Karlsruhe, Germany

2007
- Guest Teacher, Nola Hatterman Institute, Paramaribo, Surinam
- Curator, Paramaribo Biennale, Paramaribo, Surinam
- Guest Lecturer, Calvin College, Grand Rapids, Michigan, USA
- Guest Speaker, Grand Rapids Art Museum, Grand Rapids, Michigan, USA

2006
- Visiting Artist, University of Washington, Seattle, Wa. USA
- Visiting Artist, Reed College, Portland, Or. USA
- Visiting Artist, University of Oregon, Eugene Or. USA

2005 - 2006
- Curator, "Contemporary Artists from the Netherlands"
Jaffe Corridor, Hopkins Center, Dartmouth College, Hanover, N.H. USA
Jordan Schnitzer Museum of Art, University of Oregon, Eugene, Or. USA

2005
- Visiting Artist, Maryland Institute, College Of Art, Baltimore, Md. USA

2004
- Artist in Residence, Dartmouth College, Hanover, N.H. USA
(Sept. - Dec.)

2002
- Visiting Artist, University of Washington, Seattle, Wa. USA
- Visiting Artist, University of Oregon, Eugene, Or. USA

1997 - 2001 
- Teaches at Higher Institute for Fine Arts, Antwerp, Belgium
- Guest teacher at the academies of Amsterdam, Arnhem, Enschede, Maastrischt, Rotterdam, The Hague, Netherlands

1983-84
- Teaches at Academie voor Beeldende Vorming, Tilburg, Netherlands
- Teaches at Villa Arson, Nice, France

1981-86
- Teaches at Academie Minerva, Groningen, Netherlands

1977 - 78 
- Lives in New York (P.S. 1), USA 

1975 - 2003
- Teaches at de Ateliers, Amsterdam, Netherlands 

1971 - Present
- Lives and works in Edam and Amsterdam, Netherlands 

1968 - 70 
- Ateliers 63, Haarlem, Netherlands 

1966 - 68 
- Lives in Johannesburg, South Africa 
- Visual Arts Studio, Johannesburg 
- University of South Africa (History of Art) 

1965 - 66 
- Rijksacademie voor Beeldende Kunsten, Amsterdam, Netherlands 

1963 - 65 
- Atlantic College, Wales 

1957 - 63 
- Lives in Buenos Aires, Argentina 

1946 - 1957
- Lives in Eindhoven, Netherlands

1946
- 17th. October, born in Voorburg, Netherlands