Holocaust museums around the globe present in remarkably graphic form pre-war Nazi conditions that promoted anti-Semitism and the belief that Jews were sub-human. Children read schoolbooks in which Jews were depicted as exploitive, dangerous, lacking in essential human qualities. Jews were demonized to an extent that led inexorably to concentration camps and extermination. The horror of this period is told and retold in museums as a reminder that this must never happen again. Propaganda of a vicious variety has consequences, a condition the world now knows all too well.