One is a children’s book written and illustrated by Kathryn Otoshi. This book is about 6 colors: blue, purple, yellow, orange, green, and red. In the book red is being a bully to blue and no one is standing up to him until one comes around. One is the only one that stands up to red and eventually all the colors turn into numbers and stand up to red. This book is a great read to anyone who is being bullied or, has been/ witnessed bullying.