On 21 January 1946 he started work at DUCO, a Du Pont Company paint factory outside Turin. Because of the extremely limited train service, Levi stayed in the factory dormitory during the week. This gave him the opportunity to write undisturbed. He started to write the first draft of "If This Is a Man". Every day he scribbled notes on train tickets and scraps of paper as memories came to him. At the end of February, he had ten pages detailing the last ten days between the German evacuation and the arrival of the Red Army. For the next ten months, the book took shape in his dormitory as he typed up his recollections each night.