In this magisterial two-volume book, Pier Luigi Tucci offers a comprehensive examination of one of the key complexes of Ancient Rome, the Temple of Peace. Based on archival research and an architectural survey, his research sheds new light on the medieval, Renaissance, and Baroque transformations of the basilica, and the later restorations of the complex. Volume 1 focuses on the foundation of the complex under Vespasian until its restoration under Septimius Severus and challenges the accepted views about the ancient building. Volume 2 begins with the remodelling of the library hall and the construction of the rotunda complex, and examines the dedication of the Christian Basilica of SS Cosmas and Damian. Of interest to scholars in a range of topics, The Temple of Peace in Rome crosses the boundaries between classics, archaeology, history of architecture, and art history, through Late Antiquity, the Middle Ages, and the early modern period.