Acknowledgements 1. Introduction 2. Glaciers and the global system 3. Formation and mass balance of glaciers 4. Material, chemical and thermal properies of glaciers 5. Structure and morphology of glaciers 6. Glacier hydrology 7. Movement of glaciers 8. Glacier fluctuations 9. Glacial sediment transfer and geomorphology 10. Glacier hazards and resources 11. Ice cores 12. Research directions in glaciology References Index