The Question and Answer section for 1984 is a great resource to ask questions, find answers, and discuss the novel.
Big Brother is the figurehead of Oceania and the Party. Big Brother is symbolically represented in the first chapter on posters and in telescreen projections.
At the end of Part II, the Thought Police break into the apartment where Julia and Winston meet. Mr. Charrington is revealed to be a member of the Thought Police. Winston and Julia are busted.
Winston and Julia's relationship is forbidden, the fact that they're getting away with it (for the time being) is a direct blow against Party rules.
In the old days, he thought, a man looked at a girl’s body and saw that it was desirable, and that...