Orwells best one is Homage To Catalonia imo.

He talks about the Spanish civil war where he fought fascism and saw the reality of communism, not pleasant at all.

The left was doing very well fighting Franco's troops, but then the communists got involved and started murdering their allies, the anarchists and socialists, the ones doing the actual fighting.

They killed all who they said were not left wing enough, the worst ones to accuse others of crimes against the workers were the communist women.

Huxley should not have taken mescaline, it was the end for him as a novelist.