For anthropologists and social scientists working in North and South America, the past few decades have brought considerable change as issues such as repatriation, cultural jurisdiction, and revitalization movements have swept across the hemisphere. Today scholars are rethinking both how and why they study culture as they gain a new appreciation for the impact they have on the people they study. Key to this reassessment of the social sciences is a rethinking of the concept of borders: not only between cultures and nations but between disciplines such as archaeology and cultural anthropology, between past and present, and between anthropologists and indigenous peoples. "Border Crossings" is a collection of fourteen essays about the evolving focus and perspective of anthropologists and the anthropology of North and South America over the past two decades. For a growing number of researchers, the realities of working in the Americas have changed the distinctions between being a 'Latin,' 'North,' or 'Native' Americanist as these researchers turn their interests and expertise simultaneously homeward and out across the globe.