Here's why:
* Characters: The book features a young girl, Harold, and her pet dog, I, who are relatable and act in ways that are realistic for their age and species.
* Plot: The story focuses on the everyday interactions between Harold and I, showcasing themes of friendship, responsibility, and animal companionship.
* Setting: The story takes place in a familiar and grounded setting, likely a home and its surrounding environment.
While there may be elements of fantasy or humor, the overall tone and message of the book align with the genre of children's realistic fiction.