The book “One” is illustrated and written by Kathryn Otoshi and is about a blue dot that gets bullied by a red dot in the end he becomes victorious. This book is for ages 5-8 because it has really easy writing and funny illustrations. The theme of this book is a friendship/bullying book because it shows two things hating each other than being friends. All in all, I really enjoyed this book and I would definitely recommend this book to little kids.