A book, a book about mushrooms, a complex and mysterious world that has not been fully exploited by humans, which also has great potential in various fields. Through this book I want to show people the fascination of mushrooms and mycelium, so that more people can enjoy them and support sustainable mycelium materials. The book documents the process of growing mushrooms and making mycelium at home, including the preparation of the spawn, the selection of the substrate and the environment in which the mycelium grows. There are also photographs of the various species of mushrooms that I have photographed on my walks and travels, where I have documented their beautiful forms and textured spore prints.