Special monographic issue of the journal JLIS (vol.7 n.2) Table of - Editorial. The international diffusion of a wide overview on the new guidelines (Bianchini, Guerrini) - RDA, or, The Long Journey of the Catalog to the Digital Ages (Tillett) - The Making of RDA (Delsey) - RDA e history of a relationship (Escolano, Rodrìguez) - a content standard to ensure the quality of data (Bianchini, Guerrini) - the Emperor's New Code (Gorman) - a critical analysis based on cataloguing theory and practice (Petrucciani) - Cataloguing, a necessary critical aspects of RDA (Galeffi, Sardo) - Implementing RDA at the Library of Congress (Morris,Wiggins) - RDA as a tool for the bibliographic the French position (Leresche, Boulet) - RDA in Germany, Austria and Germanspeaking Switzerland - a new standard not only for libraries (Behrens, Aliverti, Schaffners) - analyses, considerations and activities by the Central Institute for the Union Catalogue of Italian Libraries and Bibliographic Information (ICCU) (Buttò) - RDA content in multiple languages (Kuhagen) - Towards an internationalization of RDA management and development (Dunsire) - Things in the World. The integration process of archival descriptions in intercultural systems (Valacchi)