If I only think of the book within 2 seconds and tell what it was like reading this, I could see a strong resemblance or some sort of repetition with Orwell's previous novel, "Animal Farm", in the context. Also, familiarity with how today's world works, even if it is not to the extent in the novel:  such as the role of the "war" between countries, the ideological enforcement through brainwashing by the hierarchical society/government, which as citizens today, we have come to accept and also have been okay with them.  even though the plot is heavily political, as an average fictional story also, anyone can enjoy it; it would put you on the edge of the chair at times.