This book is part of a book series called How Does It Work? .

This book has been graded for interest at 8-11 years.

There are 32 pages in this book. This book was published 2010 by Gareth Stevens Publishing .

Sarah Eason has written many books for children, for all age groups from pre-schoolers to teenagers, and on pretty much everything - from animals, space, boats and trucks to art, history and science. Her latest subject, Poo at the Zoo, has probably been one of the most fascinating and fun so far!