This volume offers a synthesis of the multifaceted results of a Tunisian-German research project carried out at the ancient seaport of Meninx on Djerba. Geophysical prospection clarified the internal structure of the sprawling city, which was famous as a center of purple dye production. Targeted excavations provided exemplary insight into various spheres of urban life in all periods of the settlement history, from the 4th century B.C. to the 7th century A.D. In addition, underwater archaeological investigations have shed light on the previously unknown harbour facilities of Meninx.