eHRAF Archaeology is an online cross-cultural database containing descriptive information on archaeological traditions of the world. eHRAF is unique because each archaeological tradition contains a variety of documents (books, articles, and dissertations) that have been indexed and organized according to HRAF’s comprehensive tradition and subject classification systems: the Outline of Archaeological Traditions (OAT), and the Outline of Cultural Materials (OCM). The eHRAF Archaeology database provides researchers and students access to archaeological materials for comparative studies within and across regions. Subject areas include cultural and evolutionary anthropology; archaeology; prehistory; ethnographic and cross-cultural studies; history; art history; social sciences; humanities; material culture and museum studies.