The subject index groups all tribes for which there is an entry by geographical areas. It has obviously been given much thought and efgfort, and the result shows. This reference was 6 years in the making. The editor says all were willing to do peer review, and the result shows. The writing is clear and interesting.
Articles are cross-referenced to related ones.
Many entries are illustrated, but color would have greatly improved all the illustrations about Native arts and crafts. Some entries, such as basketry, have clear diagrams indicating how some of the basket types are made. You can consult the subject index at the front of the book for more entries that deal with land claims. For fine detail, the general index at the back of the book is extensive. I note that casinos are covered under the topic-title Gaming.