This book is dedicated to the earthworm in the garden - arguably the most well-known creature in the soil. What does it look like, how does it live? And above all: How does the earthworm become a helper in the garden? It quickly becomes clear how important it is for every gardener to be a good host for earthworms: These creatures produce top-quality, nutrient-rich humus, create a fertile mix in the soil, and help every garden thrive. Only with the help of earthworms can healthy plants grow, providing a bountiful harvest for the garden. This book explains how gardening practices such as mulching, composting, and fertilizing, as well as earthworm-friendly soil cultivation, ensure that earthworms feel at home in the garden. Since a gardener's success largely depends on how well they care for their soil, the author also provides information on the formation and composition of various garden soils.