Volume XLVIII (2021) is divided, as usual, into three sections, Essays, News, excavations and field works and Notes and Discussions. Among the essays, a substantial contribution on S. Sisto Project (Pisa) by F. Cantini is presented. J. Celani publishes a contribution on the cities of Umbria in the early Middle Ages, while M. Randazzo presents a study on the Byzantine-Islamic transition in the Enna area. The book concludes with the section Reviews and reports. The section dedicated to the news of the excavations contains a contribution on the excavation of the parish church of Santa Maria in Castello in Toano (from the cemetery to the municipal tower) (N. Mancassola), a second article focuses on the archaeological investigations of the Byzantine fortress of Luni ( A. Cagnana et al.), While a text edited by F. Cantini reports new data on the area of the royal court of Lucca and on the urban mint; the section concludes with the usual space dedicated to the Mediterranean Basin with a contribution on the population and territorial organization of Hisn Salama (Libya) (H. Abdouli). The Notes and Discussions Section welcomes contributions that have as their theme the archeology of the territory and of the wall structures such as the chronology and functional analysis of the Castle of Comiso (G. Labisi) and the territorial analyzes of Salpi nella Capitanata (R. Goffredo, A. Cardone). Other topics dealt with regard the analysis of materials: ceramics between late Antiquity and the early Middle Ages in Perugia (L. Ceccarelli); the graffiti marks on the soapstone (M. Cortelazzo); the archaeobotanical analyzes of linen in the Byzantine context of Rocchicella di Mineo (AM Grasso et al.). The contribution by A. Cianciosi deals with the theme of the “Venetian well” and the water supply in the Venice lagoon. The section concludes with an article on Madaba in Jordan through the accounts of the first explorers (A. Pascolini) and a preliminary note on the port of Madayi (Kerala, India) and the post-classical trade in the Indian Ocean between Late Antiquity and the Middle Ages (V . Salvia, M. Moderato, DV Hill).