After briefly working as an architect, René Heyvaert (1929–1984) decided to pursue a career as an artist. He saw art as essential to his life; a way of dealing with the world. Heyvaert’s artistic practice is very versatile; he has created drawings, photos, mail art and sculptures in the most diverse of materials, and has also published and took part in performances. But he is best known for his work with found objects that he reinterprets through minimal interpositions. By carrying out small, poetic interventions, Heyvaert took everyday objects out of their context and stripped them of their original function. This catalogue is published on the occasion of the exhibition of the oeuvre of René Heyvaert at Museum M Leuven in the winter of 2018 and exposes on his artistic as well as architectural practice, with interviews, essays and personal reflections.