Steve Heller, a professor of design at the School of the Visual Arts in New York City, found an extremely rare book from Nazi Germany. It's an official rule and regulations book for the Nazi Party and contains extensive descriptions of graphic design standards:
Published in 1936, The Organizationsbuch der NSDAP (with subsequent annual editions), detailed all aspects of party bureaucracy, typeset tightly in German Blackletter. What interested me, however, were the over 70 full-page, full-color plates (on heavy paper) that provide examples of virtually every Nazi flag, insignia, patterns for official Nazi Party office signs, special armbands for the Reichsparteitag (Reichs Party Day), and Honor Badges. The book “over-explains the obvious” and leaves no Nazi Party organization question, regardless of how minute, unanswered.
Link via Kottke