Practically living isolated of the world, the Ussr, voluntarily or for the implantation of the Sanitary Lace, after the World War I, was presented in the end of the decade of 1930 as the great mystery for the socialist powers, not only constructed one alternative regimen to the capitalism, as at the same time it insurgiu under character of great power, mainly which had to the quinquennial plans that had objectives to delineate the economy. In the book a revolution is described that happens in the Farm of the Solar one, later will become the Farm of the Animals. A pig of twelve years, called Major, has an ideal of all the free animals, that all could leave of being enslaved of the human beings, who are its owners. With this intention, the same it considers a revolution that can place in practical the Animalism, such vocbulo created to compare itself with the Communism. In this Animalism, the animals would work exactly for itself and they did not have plus no type of obedience to the human beings, configuring the libertarian ideal. With death of Major, Ball-of-Snow and Napoleo, who are pigs are with the mission to take care of of the ideals cultivated for Major, placing in practical the Animalism. After the owners to leave of feeding the animals of the Farm, the same ones if rebel, and try to invade the warehouse that contained foods, but are soldiers on barrack duty for Jones and its assistant who notice the invasion and arrive at the place chicoteando the animals I contend then the possible invasion. Thus, the animal ones go to the fight and obtain to banish Jones and its woman from the Farm of the Solar one, giving beginning to a new life to the animals. The Animalism considered for the Major starts then, all they go to the fields and they work where the fruits of the work of the animals will be divided of equal form to all.