Trained and employed as an illustrator and animator early on, Thiebaud asserted himself as a painter only gradually, zigzagging his way among
powerful creative personalities as various as Robert Mallary (1917 - 97), Rico LeBrun (1900 - 64) and, during a sojourn in New York, Willem de Kooning (1904 - 97), Franz Kline (1910 - 62) and Barnett Newman (1905 - 70).