This program deals with hunter-gatherer cultural change and continuity in the Middle Holocene of the Cis-Baikal, Siberia. From about 9000 to 3000 BP, the Baikal area was successively inhabited by two major groups-the Kitoi, who date to the Late Mesolithic and Early Neolithic, and the Serovo-Glazkovo, who date from the Middle through Late Neolithic to Bronze Age. A distinct feature is a discontinuity separating the groups. Eleven papers highlight the interdisciplinary and international nature of the project and an important introduction to Russian perspectives.