- Colour Studies
- Alan Cristea Gallery, London, 2007
- ten square cards with folio case
- Ask
- Colour Studies
- Alan Cristea Gallery, London, 2007
- ten square cards with folio case
- Ask
contexts：
- Record as artwork: 1959-73
- Germano Celant, Roselee Goldberg
- Royal College of Art, 1973 ⁄ softcover
- Ask
- Prospect 71 Projection
- Konrad Fischer / Jürgen Harten / Hans Strelow
- Art-Press Verlag, 1971 ⁄ soft cover
- Ask
- over wandelingen en reizen / on walks and travels
- Alexander van Gravenstein
- Bonnefantenmuseum, 1979 ⁄ soft cover with Daniel Buren's leaflet
- Ask
- Ten Windows: 18 March – 18 April, 1998.
- Jan Dibbets
- Alan Cristea Gallery, 1998 ⁄ cardboard folder with 10 photos and a card text
- Ask