DK 
DK Super Readers Level 2 The Secret Life of Trees 

Use your reading superpowers to learn all about trees – the oldest, the tallest, how they grow and are used by animals and people alike; a high-quality, fun, non-fiction reader – carefully levelled to help children progress.
The Secret Life of Trees is a beautifully designed reader all about things you may not know about trees! Which three is the oldest living thing? Which is the tallest? What animals call trees their home, and where is the tree“s hidden half?
The engaging text has been carefully levelled using Lexiles so that children are set up to succeed.
A motivating introduction to using essential non-fiction reading skills.
Children will love to find out about the amazing secrets of trees.