This book is part of a book series called Dk Eyewitness .

This book has been graded for interest at 8-12 years.

This book was published by DK Publishing (Dorling Kindersley) .

Phil Wilkinson is a freelance writer and the author of 50 books, as well as being a dad of two. He is a contributor to a number of parenting sites, including the Huffington Post, writing about education, bullying, sex education and teenagers.