Leading figure of a history of art in the second half of the 20th century, Jean Dubuffet (1901-1985) made a singular work, as figurative as abstract, experiencing and constantly questioning forms, materials and techniques. His work is available in a quantity of sets that compose like a huge painting of figures, signs and writings, in surface and volume, to open on a world “parallel to our”, linked to the concept of raw art. A journey to discover a pioneer and forecasting work.