Duncan B. Hollis (@DuncanHollis) is Laura H. Carnell Professor of Law at Temple University Law School in Philadelphia. His scholarship engages with issues of international law, interpretation, and cybersecurity, with a particular emphasis on treaties and other forms of international agreement. He is the editor of the award-winning Oxford Guide to Treaties (2012, 2nd edition forthcoming 2020) and, together with Allen Weiner, the 7th edition of International Law, one of the leading U.S. textbooks. Professor Hollis is currently a non-resident Scholar at the Carnegie Endowment for International Peace and an elected member of both the American Law Institute and the OAS Inter-American Juridical Committee. In the latter role, he serves as Rapporteur for a project on improving the transparency of State views on international law’s application to cyberspace. Professor Hollis also studies—and participates in—global negotiating dynamics on state behavior in cyberspace, including regularly working with the Microsoft Corporation on its digital peace agenda.