Jan Schoonhoven (Delft, 1914 - Delft, 1994) is widely known for his extensive and systematic investigations into light, form, and volume through his sculptural wall reliefs and works on paper. Schoonhoven played a central role in the Nederlandse Informele Groep (Netherlandish Informel Group) and the Nul-groep (Nul Group), the Dutch equivalent of ZERO. Schoonhoven's work was included in various important group exhibitions including 'Zero-O-Nul'at the Gemeentemuseum Den Haag, The Hague, in 1964, and 'Amsterdam, Paris, Düsseldorf' at the Solomon R. Guggenheim Museum, New York, in 1972. Furthermore, he participated in documenta 4, Kassel, in 1968, and the IX Bienal de São Paulo, Brazil, in 1967, where he was awarded second prize.