Man, you're kidding, right? About that "Animal farm"? =:0
Aw well, that's not the matter. Peace.
BTW, haven't you had a chance to speak to the veterans of the time? They can be far more interesting, and even more informative and honest, since they've seen some of the events with their own eyes.
Books are a variety, but you should never miss a chance to talk to the witnesses - books are forever, and they are not.
The point of our short discussion was, before you stepped in, the sick self-humiliating manner many russians practice whenever they start talking to a foreigner, and how it is absolutely ignorant and disgusting to have no pride in one's ancestors. So there's really nothing for you to take close to the heart, or even pay attention to, I believe.