The Encyclopedia of Prehistory represents temporal dimension. Major traditions are an attempt to provide basic information also defined by a somewhat different set of on all archaeologically known cultures, sociocultural characteristics than are eth covering the entire globe and the entire nological cultures. Major traditions are prehistory of humankind. It is designed as defined based on common subsistence a tool to assist in doing comparative practices, sociopolitical organization, and research on the peoples of the past. Most material industries, but language, ideology, of the entries are written by the world's and kinship ties play little or no part in foremost experts on the particular areas their definition because they are virtually and time periods. unrecoverable from archaeological con The Encyclopedia is organized accord texts. In contrast, language, ideology, and ing to major traditions. A major tradition kinship ties are central to defining ethno is defined as a group of populations sharing logical cultures.

Geographers is an annual collection of studies on individuals who have made major contributions to the development of geography and geographical thought. Subjects are drawn from all periods and from all parts of the world, and include famous names as well as those less well known, including explorers, independent thinkers and scholars. Each paper describes the geographer's education, life and work and discusses their influence and spread of academic ideas. Each study includes a select bibliography and a brief chronology. The work includes a general index, and a cumulative index of geographers listed in volumes published to date.Published under the auspices of the International Geographical Union.