Hitler's Beneficiaries by Gotz Aly (2007, Hardcover)

This is fascinating look at how the German/Nazi government financed Germany's recovery from the Great Depression and the restoration of German military power in the 1930s, and then financed the massive expenditures required by Germany's involvement in World War II.
The most interesting subject within this general topic are the ways that the German/Nazi government found to finance the war without raising taxes on the majority of Germans; a majority of the additional tax burden was borne by the wealthy and by the industries that were making windfall profits from the war (The Americans and English did it for the most part the other way round). The German/Nazi government also worked out a number of complicated ways to tap into the financial resources and raw materials of the other countries of Axis Europe -- and doing so for the most part without requisitioning/stealing materials. In theory, everything was paid for, and all the short-term debts would be repaid after Germany won the war.
German military personnel were also allowed to purchase and ship home almost unlimited amounts of almost anything (food and clothing in particular) at very favorable exchange rates. As a result (and with wage workers' over-time pay exempt from income tax) most working class Germans lived better for the first few years of the war than they did before the war -- until the Allies starting area bombing the cities, of course.
With the exception of a few pro-forma anti-Germanic statements the author maintains a professional objective tone throughout, and makes what could be a long dull slog into in eye-opening look at the economic and political issues in wartime Germany.
Anyone who is interested in the economic aspects of Germany's participation in World War II will find this book an excellent reference.
I also recommend it to any one who is writing historical fiction or alternative history/counter-factual novels set in WWII-era Germany as well.