Kor Postma is best known as a surrealist, who exhibited in Amsterdam, Utrecht, Rotterdam and The Hague in the 1930s together with Carel Willink and Pyke Koch. In 1931 a special issue of the magazine 'Wendingen' was even devoted to this trio. René Magritte was a sometimes too important example for him in that period. After some disappointing reviews, Postma moved to Paris. In the 1950s he started a second career as a painter, partly thanks to influential friends such as Georges Pompidou and Jacques Prévert.