This book, "Back-To-School Rules", is such a quirky fun book and a fun introduction of what to expect out of your students on the first day of school. Because the story shows them the rules of what to do and not to do in school. Percy is just trying to survive school and in order to, he made 10 simple rules to follow. For example, always stay awake in class! And no spitting spit balls in the classroom! I believe that this book is geared towards pre-k through 3rd grade!