To create spray can paintings that inscribe gesture and time on the canvas, to let the tool guide the form, to methodically explore the structuring of a painting... there is no doubt: Martin Barré (1924 - 1993) has established himself as one of the most important abstract painters of the 20th century, far from any school. Ambitious and radical, his work is now the subject of a retrospective-event at the Centre Pompidou, the first in twenty years. With 66 paintings ranging from 1955 to 1992, the visitor accompanies the French painter on his artistic journey: from the exploration of the abstract lessons of the first 20th century to the reflection on color and combinatorics, through his pioneering body of bomb paintings. At the heart of the museum's collections is also the series of L'Indissociable (1977 - 78), composed of 14 canvases, which was exhibited only once at the Musée d'Art moderne de la ville de Paris. In his work, an aesthetic and formal research is continually being carried out. Martin Barré does not "paint to deliver states of mind", he seeks to understand the possibilities of abstraction and, ultimately, helps to nourish it.