This book doesn't give the year of its publication but who cares. It's a Dutch translation of a German guidebook by Klaus Richarz and it helps you identify animals through their unique environmental footprint. Every second page is filled with amazing pictures, showing the wide range of traces that animals leave behind: footsteps in the snow, nests and burrows, food remains, vomit, droppings, and much more. This is not just a guidebook but a catalogue of the ingenuity of everyday European birds, mammals, spiders, ants and insects. This book is fun to browse through ever if you have never set foot outside your condominium. I am going to carry it with me on future cryptoforest crawls.