This nonfiction book is from the Extreme Machines series and is all about smart machines. The book first teaches students about smart machines that are in the ocean. There are underwater vehicles that teach scientists about the ocean and robots that go underwater and take videos. The book then talks about trains that are smart and drive without drivers and smart cars that have sensors, lasers and radars that help drivers be safe. The book also teaches about smart machines that deal with bombs, planes that are smart and smart machines used in space. The book also has a test students can give themselves, a glossary, find out more page and index. The book is presented simply with large font, a low reading level and straight forward facts. The photographs are high quality and book has really nice thick pages.