Narrative point of view is the perspective through which a story is communicated. If you want to tell the story from the direct perspective of the main character or an observer, first person might be the right POV.
First Person POV
There are two variations of first person POV.
First person protagonist is when the character narrates his or her own story. This is very common in popular fiction. This allows the reader a close, personal look into the character’s experience, thoughts, and emotions.
First person observer is when a secondary character tells the main character’s story, such as Dr. Watson narrating Sherlock’s Holmes cases. This is less common in modern popular fiction, but is still used by some writers. This is a useful style when you don’t want the reader to be directly inside the main character’s mind and when the story is better served being told by someone who can somewhat objectively tell the main character’s story.
Advantages of First Person
It feels natural to the reader, because it’s how we speak about our world and experiences to others in real life.
Dealing with only one narrator’s mind can also be easier for the writer than writing multiple narrators. It is also usually easier for the reader to follow the story and keep track of events.
It also creates a unique and distinctive internal voice. Being in only in one character’s mind at a time makes it easier to “stay in character” as well. This is a popular POV for new or young writers for that reason.
Readers also get to experience the story vicariously more easily in first person, which may or may not be a benefit to the story and should be a factor in considering what POV to use.
There is also opportunity to create an unreliable narrator, however, this is a very challenging character to write and must be well planned from the beginning to be successful.
It is much more intimate and can fully immerse a reader in a story, which might be too much for some stories that have triggers or are highly intense or emotional.
Disadvantages of First Person POV
Writers are limited to writing only about what the character can see, know, or hear. This makes it difficult to hide things from the main character, or to reveal information to the reader without the main character knowing as well.
The narrator must be in every scene, observing and participating in the story. This limits what scenes the reader can observe and what information the reader is privy to.
Minds of other characters are off limits, as is their knowledge about the story, unless directly shared with the narrator in some way.