Seymour Simon is well-known for his numerous photo-essay-type of picture books for elementary-aged students. Most of his books center around one specific well-defined topic and are illustrated with full-page photographs of the subject. This book is no exception. Sharks is an unpaginated, 32-page picture book, with approximately half of those pages containing full-color photographs of sharks.

The text begins by reassuring the young reader that shark attacks on humans are relatively uncommon and continues with a comparison between sharks and other types of fish. Several pages describe the characteristics of different kinds of sharks, leaving the reader with a sense of how varied these fish truly are. There are also two pages that describe the different types of shark reproduction; for my young non-readers, I skipped the paragraphs that described "external fertilization" and "internal fertilization". The book closes by reminding the children that sharks do not attack people very often, despite what they may have heard, and gives several suggestions for staying safe whilst swimming.

As usual for Seymour Simon's books, the photographs are of high quality and are truly the highlight of the book. Two of the photographs show the teeth and jaws of sharks up close, and my sensitive 5-year-old was horrified. Even so, my 3-year-old was fascinated. One photograph shows the birth of a lemon shark, which is born live as are human babies; my little readers didn't understand this and breezed right by it. The most popular picture of all was that of a hammerhead shark. The children were incredulous that any living creature could look so odd. Weeks later, they still talk about the hammerhead and are anxious to see one at an aquarium.