 By 1925, he had already designed 3000 different advertisements.During World War II, he was a member of the Nazi party and worked closely with Joseph Goebbels and The Ministry of Propaganda and Enlightenment.And as an ardent nationalist, indicated by his work for the government during both World Wars, he urged other artist to join the effort when Hitler came to power in 1933.“May the best among us realize fully the significance of what is at stake and their own responsibility, and may we labor creatively and with conviction at the preservation of our cultural civilization and its restoration to perfectly healthy conditions.”"Holhwein’s posters for Nazi Germany are the most dramatic examples of National Socialist realism."