Most Popular Books
- The federal Bureau of Investigation before Hoover: Volume 1: The fBI and Mexican Revolutionists, 1908-1914
- Felix A. Sommerfeld and the Mexican Front in the Great War
- The Negotiator's Toolbox: Winning Strategies for Corporate Buyers and Small Businesses
- The Secret War Council: The German Fight Against the Entente in America in 1914
- Im Schatten Der Oeffentlichkeit: Felix A. Sommerfeld, Geheimagent in Mexiko, 1908 Bis 1914
