This book is suitable for Key Stage 3. KS3 covers school years 7, 8 and 9, and ages 12-14 years. A key stage is any of the fixed stages into which the national curriculum is divided, each having its own prescribed course of study. At the end of each stage, pupils are required to complete standard assessment tasks. This book is aimed at children in secondary school.

This book was published 2008 by Oxford University Press .