What is the author's style in The Things a Brother Knows by Dana Reinhardt?

"The Things A Brother Knows" by Dana Reinhardt is written from the perspective of Levi Katznelson, a seventeen-year-old boy. As such, the narrative reflects the language and thoughts typical of a teenage boy. The reader learns that the young boy, which is often the case, admires and even envies his older brother. Boaz is smarter, taller, better looking and more charming that Levi is—at least in Levi's estimation. Through his words and thoughts, the reader learns that Boaz is not completely captivated by his older brother now that he is maturing. There is even a hint that Levi feels a competition between them.