**"Els Mamífers de la Garrotxa"** is a book by Miquel Macias i Arau that explores the mammal species found in the Garrotxa region of Catalonia. It provides insights into the biological and ecological realities of 47 species, as well as the human perception of these animals. The book is written in Catalan and is a valuable resource for nature enthusiasts and researchers interested in the region's biodiversity.