There are three types of entries in the is defined as a group of populations sharing Encyclopedia: the major tradition entry, similar subsistence practices, technology, and forms of sociopolitical organization, the regional subtradition entry, and the which are spatially contiguous over a rela site entry.
This series is an overview of all of human history from two million years ago to the historic period. Prepared under the auspices and with the support of the Human Relations Area Files and an internationally distinguished advisory board, and edited by Peter N. Peregrine and Melvin Ember, the encyclopaedia is organized regionally with entries on each major archaeological tradition written by noted experts in the field. Volume 2 focuses on the Arctic and Subarctic.