This nonfiction book is all about polar bears. The book teaches students all about polar bears, including their home, bodies, what they eat, how they hunt, babies and how global warming is impacting these animals. This book has a great predictable layout, with amazing photographs that make the bears look like they are walking right off the pages. Each chapter is on facing pages and teaches something about the bears. For example, polar bears are the biggest meat eaters on Earth. They are two times bigger than a tiger.  Each set of pages also has two extra facts on puzzle like bubbles. I especially liked the help us chapter that teaches students how we are losing these bears, due to global warming and what kids can do to help out. At the end, there is also a glossary, further reading and index.