Guido Bastianini, Full Professor, teaches Papyrology at the University of Florence. He directs the Papyrological Institute «G. Vitelli» and is vice-president of the Association Internationale de Papyrologues. His research has focused on the Roman administration in Egypt, the Hellenistic epigram and papyri with philosophical content. Among his main publications: with J. Whitehorne, Strategi and Royal Scribes of Roman Egypt (Florence 1987); with D. Sedley, Commentarium in Platonis «Theaetetum» (Florence 1995); with C. Gallazzi and C. Austin, Posidippo di Pella. Epigrammi (Milan 2001). Francesca Maltomini studied at the Scuola Normale Superiore of Pisa, obtaining her specialization in Classical philological, linguistic and historical subjects. She completed her papyrological training at the Papyrological Institute «G. Vitelli» of Florence, where she currently carries out research activities. Her research has discussed the (ancient and medieval) tradition of creating corpora of epigrammatic and gnomic literature; she has also edited first editions and revisions of papyry and ostraca belonging to Italian (Florence, Genoa) and foreign (London, Oxford, Berlin, Vienna) collections. Gabriella Messeri teaches Papyrology at the University of Naples "Federico II", is a member of the Comité International of the Association Internationale de Papyrologues and of the Scientific Council of the Papyrological Institute «G. Vitelli». She is also a member of the scientific committees of the magazines «Aegyptus» and «Analecta Papyrologica». She is participates in the organization of the Papyrology Seminars in Florence. She has published papyri and ostraca from the main Italian and foreign collections. Her interests lie in the increase in primary historical sources through the edition of unpublished materials, the investigation of certain aspects of the Roman administration of Egypt and in the palaeography of the Greek papyrus.