H.B. Gisevius - Biography of Hitler
Gisevius, an Abwehr (counterespionage) officer during WWII, was presented after the war as one of the first and foremost opposition members in Germany. I'm not so sure about that story. His biography of Hitler is interesting in a strange way. He knew the man personally. Not many biographers did. He tends to be a bit too apologetic for my taste.

Conquest without war - On Kruschev's stance in politics, economics, peaceful coexistence and other worldly matters. Written by two American historians during 1960/1961, it's a text-book example of propaganda. The comments on Kruschev's statements are almost hilarious (Kruschev's statements are also hilarious). It does, however, give an interesting view on the post-Stalin period in geo-political matters.