Discover More: Rocks and Minerals is much more than a simple spotters' guide. Packed with amazing information about how rocks help us understand Earth and our own history, from early fossils to the treasure troves of pirates and the building of spacecraft, this book will enthrall young rock enthusiasts. Detailed artwork and photographs show what is happening beneath the Earth's surface in volcanoes, caves, and mines. Includes simple key that enables readers to identify any rock. Discover More: Rocks and Minerals comes with a free digital book featuring extra content and activities.