Here's a breakdown of its elements:
* Children's fiction: It's written for children, with themes and language suitable for that age group.
* Fantasy: It involves a talking squirrel with superpowers, which is inherently fantastical.
* Humor: The book has a lighthearted tone with plenty of funny moments, especially through Ulysses' quirky personality and Flora's cynical humor.
You could also consider it middle grade fiction, as it's aimed at children around 8-12 years old.