What is the author's style in Fathers and Sons by Ivan Turgenev?

The novel is told by a third person omniscient, or all-knowing, narrator who has the power to go within any character's mind and display their thoughts. For example, when Bazarov and Pavel get in their first argument over their beliefs, Nikolai thinks to himself, "You are certainly a nihilist, I see that," although what he says aloud is "Still, you will allow me to apply to you on occasion." This is the style for most of the novel. However, there is a notable exception in the narration: at times, the narrator speaks directly to the reader, as when the narrator introduces Nikolai: "We will introduce him to the reader while he sits, his feet tucked under him, gazing thoughtfully round." This style is also used at the end of the novel: "But perhaps some one of our readers would care to know what each of the characters we have introduced is doing in the present." By book-ending the story with these two references that draw attention to the narrator, readers are reminded that they are reading a work of art and are encouraged to focus on the realities of the social situation the book describes—instead of just getting caught up in the story.