I recently bought two pamphlets with radio talks for the youth by Walter Groß, head of the Nazi Party’s Racial Policy Office. The first I added about a week ago. Now I’m adding the second, Blood is Holy, delivered a year later (1935). Like the first, it is an effort to translate Nazi racial theory into language understandable by children.
There was a great deal of Nazi material on this topic. The best book on the subject is Claudia Koonz’s The Nazi Conscience.