Preface. 1. The world of volcanoes; 2. The cooling Earth - how do rocks melt? 3. Volcanoes, plate tectonics and planets; 4. Types and scales of eruption; 5. Lava flows and bubbling cauldrons;6. Explosive pyroclastic eruptions and their deposits; 7. Igneous intrusions - a window into volcanic plumbing; 8. Volcanoes, life & climate; 9. Monitoring volcanoes; 10. Volcanoes and Man. Glossary.