Returning to NSDAP, Gottfriend Feder was an extremely influential economic thinker in the early days of the party. Without diving too deep, NSDAP itself was divided between those who sought fundamental economic reform and those who wanted revitalization. The latter won out in terms of policy, but Feder's thinking enabled NSDAP to break Germany from the ties of reserve currency and the establishment of the reichsmark. As far as economic thinkers goes, Feder was both controversial and profound. Both of his works are excellent reads and when coupled with a more generalist knowledge of currency, finance markets, forex ect one can truly understand the insidious damage usury causes to a nation.