Unmatched in their power and violence, volcanoes are also beautiful and surprisingly beneficial. As revealed in "Volcanoes: What's Hot and What's Not on Earth and in Our Solar System," the molten rock beneath our feet continues to shape our world and contributes to the chemistry of life itself. Join geologist and educator Ian Lange for an in-depth survey of volcanism, from magma generation, plate tectonics, caldera formation, and hot spots to basalt...