The illicit trade in cultural heritage is a serious transnational crime that deprives communities of their history and identity, erodes public trust, and undermines public institutions. To respond to this multifaceted challenge, researchers must operate at the intersection of law, archaeology, art history, digital forensics, and data science. This has brought renewed attention to the value and complexity of digital approaches for mapping the illicit trade of cultural objects. Increasingly, digital data has proven a valuable resource in studying the physical and digital movement of objects, as well as the social networks underpinning them, and their potentially illicit and unethical entanglements. This volume foregrounds these digital approaches, including but not limited to open data, open-source intelligence (OSINT), open-access scholarship, computational forensics, and archival digitisation, as core tools in a growing, interdisciplinary effort to combat the illicit trade of cultural objects.