William C. Sturtevant, General Editor; Raymond J. DeMallie, Volume 13 editor. Describes the prehistory, history, and culture of the aboriginal peoples who lived in the region of tall-grass prairies and short-grass high plains of North America. Note: Preface indicates mistakenly that this is the twelfth volume in a 20 volume set. 2 parts in two books, sold as a set.
These volumes are really out of date by the time they get published. And, the Plains volume only had a few pages on Comanches--Really? Sheesh! The Plains volume seemed descriptive rather than explanatory. At least the Arctic, Subarctic, Southwest, and California were more cohesive. I suppose if your really interested in some of these cultural areas it would be nice to have the correlating volume, but I doubt you would refer to it often.