The new exhibition devoted by the Centre Pompidou to Jean-Jacques Lebel features 50-odd works and numerous archive documents.

In the 1950s, Jean-Jacques Lebel ("the painter of the cross-over", according to his friend Félix Guattari) began to develop an unclassifiable technique.

Simultaneously artist, activist, writer, publisher, creator of happenings and organiser of events, he was one of France's most important "go-betweens" in the second half of the 20th century.