The Premise
The story is set on The Manor's Farm, owned by the negligent and often drunk Mr. Jones. The animals: pigs, horses, hens, goats, live under his rule, overworked and undervalued.
Everything changes when Old Major, an aged and wise pig, gathers all the animals for a speech. Drawing on a lifetime of observation, he speaks of a dream: a world where animals are free from human tyranny, where the fruits of their labour belong to them alone. His words ignite a spark of rebellion in every creature on the farm. Though Old Major dies shortly after, his vision lives on. The animals revolt, drive out Mr. Jones, and rename it 'Animal Farm', now ruled by themselves, for themselves.
What Orwell Is Really Saying
Orwell wasn't writing about animals. He was writing about us, and about how politics has worked at every point in history, across every corner of the world. The novel is a mirror held up to society, and what it reflects is uncomfortable.
His central argument is brutal in its simplicity: illiteracy and ignorance make people easy to manipulate. The animals who cannot read are the first to be exploited. They cannot question the rules because they cannot verify them. The pigs, who are literate, rewrite history, alter the commandments, and gaslight the rest of the farm. It works because no one can challenge what they cannot read.
Propaganda, Orwell shows, doesn't need to be sophisticated. It just needs a population that isn't paying attention.
"All animals are equal, but some animals are more equal than others."George Orwell, Animal Farm
The Tragic Arc
This is where the novel cuts deepest. The animals who led the rebellion, the very ones who fought hardest against tyranny, gradually become tyrants themselves. The pigs begin walking on two legs, carrying whips, and trading with humans. The oppressed have become the oppressors, often more brutal than the predecessor they replaced.
Loyal horses like Boxer, who gave everything to the farm with the motto "I will work harder," are eventually sold off to a slaughterhouse when they are no longer useful. The innocent and hardworking are discarded the moment their productivity runs out. Power, Orwell argues, does not corrupt occasionally. It corrupts reliably, predictably, almost inevitably. Moreover, Power does not corrupt, it reveals.
By the final pages, the other animals look through the farmhouse window at the pigs dining with humans, and can no longer tell the difference between the two.