 Especially in the years between 1939 and 1941, the revenues of the C. Bertelsmann Verlag skyrocketed.Jewish slave laborers were not forced to work in Gütersloh, but in printing plants in Lithuania with which the C. Bertelsmann Verlag cooperated.In 1944, the Reichsschrifttumskammer (Reich Chamber of Literature) closed the publishing house to "mobilize all powers for victory".