In addition to over 300 authoritative entries centering on Native American social and political movements, this specialized reference, an update to the 2016 second edition, offers numerous support features that help compile an extensive overview of indigenous accomplishments and activism in the Americas over the past 600 years…. The Introduction offers an insightful historical survey, and back matter includes examples of authentic voice prime sources and an extensive selected bibliography divided into eight historical periods. All of these features support the actual entries, which are arranged alphabetically, range from a sentence or two to several pages, and address topics including individuals, events, cultures, organizations, treaties, social issues, and social activism, current through 2023. This timely and comprehensive work serves as a solid contribution to Native American scholarship and should be of interest to academic and large public libraries.