Cave is a cool-looking informational book about anything and everything to do with caves. In this book, Donald M. Silver dives into the formation, exploration, and life of caves. Most of the book is focused on the creatures of the caves, which is cool for kids. The placing of the words and pictures makes it seem like you're not reading an informational book, but this book is still full of great information about caves. The illustration is fairly real, but somewhat cartoonish which makes it fun and playful. You can probably find just about anything the casual learner would want to know about caves in this book, in a non-threatening and as fun as possible way.
I think this could be used in the classroom when talking about biomes and environments. All of Silver's books are great for informational reading about nature, and Caves is just another example. It could open an otherwise inaccessible world to students and spark their minds to the weird and wonderful world of caves.