Personal Reaction: Clean format, nice organization, well put together. It does the job of teaching about sharks to younger readers, beyond that it wasn't too exciting. Pages had a good ratio or images and text, but could have had more fun and involved elements.
Purposes:
Read Aloud- This would be an excellent book to start off a unit on sharks or sea creatures for younger elementary to introduce the key elements, such as how they live underwater, what they do, and their environmental habits
Independent Reading- I would assign this book with a collection of other books to a student who is doing a project over sharks or a particularly interested student who finds sharks to be super awesome.
For nonfiction- A great foundational book for students first learning about sharks in their first underwater unit. It really hits on the basics in a way that sticks for kids.