In March 2006, Saviano's first book, "Gomorrah: A Personal Journey into the Violent International Empire of Naples' Organized Crime System", was published as part of Mondadori's Strade Blu series. It is a journey into the business and criminal world of the Camorra and of the places where the organization was born and lives: the region of Campania, the city of Naples, the towns of Casal di Principe, San Cipriano d'Aversa, and the territory around Aversa known as the "agro aversano". Having grown up there, the author introduces the reader to a reality that is unknown to outsiders. The book talks about criminal bosses' sumptuous villas copied from Hollywood films; rural lands filled with the toxic waste of half of Europe; a population that not only cohabitates with this organized crime but even protects it and approves of its actions.