Emerald the purple hippopotamus teaches children from preschool to age 8 the 8 D's in Dealing With Bullies. Bullying is such an important topic that all children in this age range need to be educated on. This book opens the conversation between the person reading the story and the child. Children need to learn about bullies before they attend school. As soon as a child can understand the spoken word is the time to verbally teach coping skills. This book is volume 1 in the Emerald and Friends series.