The Smithsonian Institution's multi-volume work in progress. Each volume focuses on a particular region and contains articles on individual tribes or themes such as "Late prehistory of the Ohio Valley".

Dated but still useful 2 volume set giving brief descriptions of nearly every linguistic stock, confederacy, tribe and subtribe with information about ethnic relations, history, language, customs, arts and industries.

A broad overview supported by maps of demographic and other social data.

In addition to the economic snapshots for each reservation, this guide provides great directory/contact information.

Each volume covers a different region/continent. Volume 1 covers North American cultures (including non-native communities)