Animal Farm was a really important book for me. I picked it up aged about 10 or 11 and I remember being really struck by how easily the pigs were able to exploit the other animals' grievances with humans to secure their own power. It felt like a grown-up story with some quite powerful, disturbing meanings under the covers. So I told my English teacher about it and all she told me in response was to go look up the Rus…
I highly recommend Homage to Catalonia if you liked Animal Farm. It really explains how Orwell became disillusioned with communism (while fighting for it).
He fought for socialism and he stayed a socialist - but he became a enemy of Stalinism.
The brotherhood and spirit of the socialist militia he was in, he praised as real and something he never experienced before or after.