Trees grow in many habitats, all around the world. Some trees are short and some are tall. Some grow in hot deserts and others grow on cold mountains. Some have leaves that are broad and wide and others are short and narrow. Some trees stay green all year round while others have leaves that change color. Compare and contrast the different characteristics of trees through vibrant photographs.

Award-winning author Katharine Hall is a life-long nature lover and avid reader. She hopes the Compare and Contrast series will help children use critical thinking skills to explore and learn about the natural world around them. In addition to Mammals, Katharine's other titles in this series include Polar Bears and Penguins (NSTA/CBC Outstanding Science Trade Book and IRA Children's and Young Adults' Book Award for Primary Non-Fiction), Amphibians and Reptiles, Clouds, and Trees. Katharine and her husband live in South Carolina with their dogs and cats.