Beginning in 1994, the Proyecto Tiksi Kjarka conducted a complete survey of the Islands of the Sun and Moon in southern Lake Titicaca, along with test excavations of important Inca, Tiwanaku, and pre-Tiwanaku sites. This book provides the final results of this work on one of the most important locations in the circum-Titicaca Basin, with detailed survey and excavation data indispensable for Andeanists and other scholars interested in the development of complex political, economic, and ritual systems in prehistory.