@ mur'phon: Animal Farm is a great book that I read in ninth grade and I love Orwell's take on using the animals to reiterate the rise of Stalin, that kind of thing. My favorite of Orwell's is 1984. I often use it to refer to the Patriot Act enacted here in the state with the whole Big Brother is Watching You. My favorite line is when Winston writes 'Freedom is the ability to say that two plus two equals fives. If that is granted then all else follows.'
Another good classic that ties in with the themes exhibited by 1984 and Animal Farm is The Handmaiden's Tale by Margaret Atwood. This is a tale that actually uses the Christian evangelical form as a means of imprisonment. It is told through the eyes of one woman who lives in this Christian community that forbids reading and is ranked by their usefulness. No offense to the Christian peoples there but this is one strange tale but probably not improbable.