What is the author's style in Sleeping Freshmen Never Lie by David Lubar?

The story is written as a combination of a narrative and a first-person journal intended for Scott's little brother. Scott begins by writing about his own life and his anticipation of his first day of high school. The story takes a twist when Scott learns his mother is pregnant. With that information, Scott realizes that he might have had an easier time if he'd been able to turn to his older brother for advice. This prompts him to begin a journal though he has no real intention of keeping it private. The narrative and the journal entries are written very similarly. Both carry an extremely informal tone with only a few exceptions. One is that Scott tries to work vocabulary words into his journal entries. He then teases his little brother about those words, encouraging him to look up any he doesn't know. Narrative, journal entries and dialogue are reasonable for the subject, story, and audience. An interesting aspect of the story is that Scott loves English. As he's learning about literary tools and reading new stories, he puts what he's learning to use in both his narrative and the journal entries. For example, when he learns about the "Tom Swifties," Scott entices one of his friends to make up some with him. He later writes several in his journal. When he learns about "stream-of-consciousness" writing, he provides an example that rambles on for a lengthy run-on sentence. He then says he won't blame Sean for skimming the sentence without really reading.