Umberto Eco (1932–2016) is the most famous Italian writer of our time, author of the world bestsellers “The Name of the Rose” and “Foucault’s Pendulum”, medievalist historian, semiotics specialist, philologist and cultural historian, winner of the most prestigious awards, whose The books have been translated into forty languages. “The Conjuring of Satan. Chronicles of a Fluid Society" is a collection of notes published by the author in the Milanese magazine L’Espresso from 2000 to 2015, on various current topics of modern politics, philosophy, religion, mass media and book culture in the context of the current social situation, characterized by a crisis of ideologies and political positions. “The Conjuring of Satan,” the last book by Umberto Eco, prepared for publication by himself, is a kind of continuation of “The Cardboards of Minerva.”