Georges Mathieu is born in Boulogne-sur-Mer (Pas-de-Calais) in 1921. He studies literature and philosophy before turning to painting at the age of 21. First realist painter and portraitist, he develops a model of abstract expressionism very personal. In 1947, he organizes, with Camille Bryen, a tachisme exhibition based on the psyche of non-figuration. That same year, he exhibits at the Salon of New Realities fabrics’ textures paintings made of stain sprung directly from the tube. As Jean Fautrier, Georges Mathieu is considered one of the most important representatives of the art called lyric or informal. Until 1951, Mathieu organizes collectives’ exhibitions mirror to the period of American abstract expressionism. The artist is interested in the painting of Jackson Pollock and his spontaneous gestural handling of paint. The artist realizes for a period of time international "performance" (or "happenings") in public (Paris, many European countries, etc.). His pictorial language, close to the calligraphy, is recognizable among others and it is proper to him. Its makes him famous and numerous exhibitions dedicate his work in the world (Paris, New York, Documenta II in 1959, etc.). In the 60s, Georges Mathieu produces sculptures, furniture and tapestries and designs numerous frescoes. Also art theorist, he publishes "Beyond Tachisme" in 1963.