"La Piel de Toro" often refers to a Call of Cthulhu tabletop RPG sourcebook detailing 1920s Spain with Mythos elements, or a 1960 poetry collection by Salvador Espriu analyzing Spanish social and political themes. The term may also reference a historical essay regarding Spanish identity by Felipe Ximénez de Sandoval. For more details, explore the RPG sourcebook at Scribd . La piel de toro (Primeras Páginas)