To “L’Italia delle Italie” by Tullio De Mauro, published by Editori Riuniti, a book that collects the writings and interventions of this scholar who has always defended, with passion and farsighted perspicacity, the rights of ethnic-linguistic diversities, overcoming particularisms and facing especially the right scientific and moral value of a problem that concerns many areas of our country: a problem to which the Nonino Prize, by the way, owes its own birth.