The city of Cosa in Italy is one of the most completely excavated of all Roman cities, revealing a continuity of occupation from the 2nd century BC, when the colony was founded, until the 14th century. This well-presented study summarises the archaeological evidence for each phase of occupation and destruction, highlighting structures of particular interest, such as the House of Diana, and noting changes in the city's layout. The archaeological story ends in the 14th century when the site, then dominated by a castle, was severely reduced by the Black Death. Much of the book contains specialist finds reports, including studies of all of the medieval objects which have been largely overlooked by previous volumes. The specialists discuss Roman finds from the temple and forum, the Roman and medieval minor objects, the classical and medieval coins, inscriptions and graffiti, Roman ceramics from the House of Diana, the medieval pottery and the human skeletal remains. The book includes a well-illustrated section on the decoration of the House of Diana, including its wall paintings, mosaics, sculpture, furniture and terracottas. The full stratigraphy of the site can be consulted on a website.