Focus On offers a completely new view of major non-fiction subjects. Following National Curriculum guidelines, the books provide a Cross-Curricular approach by explaining the basic facts and exploring a wide range of subject areas including science, nature, technology, geography, history, arts and crafts. Sperb illustrations and photographs highlight the clear text. Some of the fascinating topics covered in this book are: How do you measure the height of a tree? Which tree grows roots from its branches? Which countries have trees or leaves on their flag?