Animal Farm is narrated using a specific point of view. Writers have three points of view from which they can construct their narration. There is the first person point of view, in which the narrator is character in the story and refers to himself as “I.” There is the third-person-limited point of view in which the writer focuses on how the events affect one particular character. There is also the omniscient point of view, which means “all-knowing.” When a writer uses this point of view, he looks at how the action affects and is perceived by a number of different characters.
Animal Farm is narrated with an omniscient point of view. Orwell does not narrow his focus to only one character. We have passages that focus on the following characters: Snowball, Napoleon, Boxer, Squealer, and Benjamin. If Orwell had only told things from Boxer’s perspective, he would have been using third-person-limited. If he had made one of the characters themselves tell the story, he would have been narrating with a first-person point of view.
You could also say that the story is narrated in chronological order. That is, in the same order in which the events occur in time sequence.