As one of the greatest pioneers of international conceptual art, Italian artist Piero Manzoni (1933-1963) maintained strong ties with the Netherlands. The unlocking of his intensive correspondence with Rotterdam gallery owner Hans Sonnenberg has revealed the extent of Manzoni's influence on the post-war avant-garde in the Netherlands.

During his short artistic career Piero Manzoni produced more than a thousand canvases, sculptures and other objects. He radically rejected the conventional cont...