Two books I read after 9/11 shaped my path greatly:

1.) Stasi: The Untold Story Of The East German Secret Police

ISBN #: 0813337445

2.) The Rise and Fall of the Third Reich

ISBN #: 9780671728694

Both should be available in most public libraries, but with the ISBN you can usually get almost anything via inter-library loan.

>The Rise and Fall of the Third Reich

An amazing book. I'm not sure how it's particularly career-path-impacting, but it is fascinating being able to follow the cause and effect chain in Germany leading up to and all through the war (in excruciating detail).