This book describes the scope and results of glacier measurements since the Little Ice Age, highlighting the current significance of the data collected in the Eastern Alps for climate research. The authors present early research achievements of the Alpine Club, such as the proof of the existence of ice ages and the discovery of the flow law for glacial ice. Exciting glimpses into the archive exemplify the mechanisms and impacts of glacier retreat. Austria's largest glacier, the Pasterze in the Glockner area, is described in particular detail. This creates a picture for interested laypeople of the relationship between glaciers and climate, enriched with many geomorphological details. Students and graduates of geosciences will find scientifically relevant details and regional facts about climate change and its research.