Seams of the Earth -- Surtsey, Iceland -- Fire Under the Sea -- Mt. St. Helens -- Pinatubo, Philippines -- Ring of Fire -- Kilauea, Hawaii -- Hot Spots -- Lava, Ash, and Bombs -- Lahars and Avalanches -- Cones, Craters, and Calderas -- Yellowstone -- Roots of Volcanoes -- Origin of the Sea and Air -- Volcanic Power -- Volcanic Treasures -- Volcanoes and Climate -- Forecasting Volcanic Eruptions -- Reducing Volcanic Risk -- Volcanoes in the Solar System.