Discover what it's like to have x-ray vision! Step inside the world of x-rays where you can see behind walls, inside objects, and even through skin! Ever wonder what you would like? What about a laptop computer or cell phone? A spider or a fish? Each page features an x-ray photo of a person or object in nature, sports, or technology with descriptions and fun facts about the images themselves, along with a brief explanation of how x-rays work.