 After Vian's graduation, he and Michelle moved to the 10th arrondissement of Paris and, on 24 August 1942 he became an engineer at the French Association for Standardisation (AFNOR).By this time he was an accomplished jazz trumpeter, and in 1943 he wrote his first novel, "Trouble dans les andains" (Turmoil in the Swaths).His literary career started in 1943 with his first publication, a poem, in the Hot Club de France bulletin.