Every spy fiction lover knows about James Bond, George Smiley, Harry Palmer and other favorite heroes of the worldwide popular genre. Writers like Ian Fleming, John Le Carre and Len Deighton made these characters the favorites of readers. But, a long time ago, much before the Cold War, the spies were usually seen as sneaky villains. However, things change in the 19th and especially the early 20th century when the spy was not seen as being creepy and evil anymore, but as noble man who saves the world or believes in a certain cause. The following books prove that theory very easily.