This volume, the first in a series of publications on the Austrian excavations of ancient Aigeira in Achaia, presents all prehistoric and Mycenaean findings (with the exception of the Mycenaean pottery) from the highest point of the settlement, the so-called acropolis. Pottery and small finds from the Final Neolithic and the Early and Middle Helladic periods provide the oldest evidence of human settlement. The publication presents the carbon-14 dating, small finds, and the archaeo-zoological and archaeo-botanical remains of the post-palatial Mycenaean settlement phase of Late Helladic IIIC. They help to define the character as well as the status of this settlement within Mycenaean Greece.