In The Summer I Turned Pretty, Belly falls head over heels for her brother's best friend, Conrad. As she starts to see the "bad boy" side of him, her attention draws her closer. They both eventually grow feelings for each other. The story is written in Belly's point of view. From this perspective, a lot of events and characters are described in a way that creates hatred towards Conrad. During the beginning of the book, it describes Conrad as a rebel. He does what he wants to do. After a while, his feelings towards Belly grow, but there is another person that gets in their way of their relationship: Jeremy.
One way that Belly's point of view influences the reader's interpretation is how her perspective describes and shows you her relationship with Conrad. In the beginning of the book, it reveals Conrad a bit of a "brat" the way Belly describes him. While reading, this gives you an opinion of Conrad and not such a good one. When Belly and Conrad are at the fair, he ignores her and treats her as if she were his little sister. When I first read that, my first impression of him was not a pleasant one. I thought that he was going to be like any other teenage guy in high school: cocky and selfish, but as the book goes on and he dates Belly, you start to see the softer side of him.
However, the reader would feel a lot differently about Conrad if the novel was written in the point of view of Conrad. You would understand how he feels and what he's going through more. His intentions might not have been what he was going for. For instance, the reader wouldn't think that Conrad was soft hearted before Belly stepped into his life. If the book were to be in his point of view, much would change because in a relationship, both people see things in different perspectives.
As you can see, the point of view of the story forces the reader to see just one side of the book. In The Summer I Turned Pretty, you have to be patient with some characters. For an example, Conrad, he has an attitude in the beginning, but redeems himself. Belly's perspective makes the reader have strong opinions of each character, main or minor. When reading this novel, you have to understand the characters. Imagine what it's like to be in their shoes and situation.