The main purpose of anthropology is to understand human biological and cultural diversity, and the origins of humans. So, the humans that anthropologists study can be modern or ancient, and can span across the globe. Anthropologists are unique in that they study the entirety of human existence over time and space.
The LibreTexts approach is highly collaborative where an Open Access textbook environment is under constant revision by students, faculty, and outside experts to supplant conventional paper-based books.
AnthroSource is the database of the American Anthropological Association (AAA). It offers full-text anthropological resources from the breadth and depth of AAA journals, newsletters, bulletins and monographs.