This volume deals with the prehistoric human groups and their environments that occurred during the early and middle Holocene (roughly 10 - 6 thousand years before present) in a huge segment of the Eurasian continent forming the East European Plain, which predated the early manifestations of food-producing economies: agriculture and stock-rearing. In archaeological terms widely accepted in the West, this period corresponds to the Mesolithic, panoply of hunter-gathering communities that evolved in the aftermath of the Last Ice Age.