After the excitement of its discovery and excavations in the early 1960s, the world-important site of Çatalhöyük has remained dormant for 30 years. This is Volume 1 of the Çatalhöyük Research Project series. It describes the first phase of renewed archaeological research at the site. It reports on the work that has taken place on the surfaces of the east and west mounds and in the surrounding regions. It also discusses the material from the 1960s excavation in museums, which has been re-examined. The result is that new perspectives can be offered on the internal organization and symbolism of a site which is central to our understanding of the earliest development of complex societies.