Spanish translation of a collection of Umberto Eco articles about different arguments in which as a translator I had to handle with critical editions of texts from Cicero, Adso de Mortier, Hildegarde von Bingen, Richard Wagner, Ian Fleming, Psellos, Martial, Shakespeare, Orwell, Sartre, Peirce, Dante, Dionysius the Aeropagite, Plato, Aquinas, Ratzinger, Camporesi, Joyce, Hugo, Dumas, Galilei, Hugo Pratt, etc.. For many articles regarding emerging issues, was required a deep research about neological lexical fomations.