The act or process of telling the particulars of a story is referred to as narration. Along with exposition, argumentation, and description, narration (broadly defined) is one of four rhetorical modes of discourse. More narrowly defined, narration is the fiction-writing mode whereby the narrator communicates directly to the reader.
The concept of the unreliable narrator (as opposed to "author") became more prominent with the rise of the novel in the 18th century. Until the late 19th century, literary criticism as an academic exercise dealt solely with poetry (including epic poems like the Iliad and Paradise Lost, and poetic drama like Shakespeare). Most poems did not have a narrator distinct from the author. But novels, with their immersive fictional worlds, created a problem, especially when the narrator's views differed significantly[clarification needed] from those of the author.
Perspective, interpretive knowledge, focalization and structure are the narrator's characteristics. Perspective and interpretive knowledge are essential characteristics of the narrator. Focalization and structure are lateral.
Types of narrators 
Narrative modes 
A writer's choice in the narrator is crucial for the way a work of fiction is perceived by the reader. Most narrators present their story from one of the following perspectives (called narrative modes): first-person, or third-person limited or omniscient. Generally, a first-person narrator brings greater focus on the feelings, opinions, and perceptions of a particular character in a story, and on how the character views the world and the views of other characters. If the writer's intention is to get inside the world of a character, then it is a good choice, although a third-person limited narrator is an alternative that does not require the writer to reveal all that a first-person character would know. By contrast, a third-person omniscient narrator gives a panoramic view of the world of the story, looking into many characters and into the broader background of a story. A third-person omniscient narrator can tell feelings of every character. For stories in which the context and the views of many characters are important, a third-person narrator is a better choice. However, a third-person narrator does not need to be an omnipresent guide, but instead may merely be the protagonist referring to himself in the third person (also known as third person limited narrator).
Multiple narrators 
A writer may choose to let several narrators tell the story from different points of view. Then it is up to the reader to decide which narrator seems most reliable for each part of the story. It may refer to the style of the writer in which he/she expresses the paragraph written. See for instance the works of Louise Erdrich. William Faulkner's As I Lay Dying is a prime example of the use of multiple narrators. Faulkner employs stream of consciousness by narrating the story from the.
See also 
- Narrator in different languages
- Directory of International voice talent for narrations
- UK based voice overs and narrators
- The Narrator
- Summary of narrator