Including:

 Max Planck Encyclopedia of Public International Law - This is an updated, comprehensive work covering the central and essential topics in international law. It contains peer-reviewed articles on every aspect of public international law. It is published by Oxford University Press in partnership with the Max Planck Institute for Comparative Public Law and International Law and is updated throughout the year. Content has been chosen to reflect not only the history of public international law, but also recent growth areas such as criminal law, human rights law, economic law, and environmental law. The Encyclopedia also features the Oxford Law Citator, which provides links between related cases, articles, and additional materials.

Max Planck Encyclopedia of International Procedual Law - maps and analyzes the systems and processes through which international law is made and adjudicated in practice. Each article is commissioned by General Editor Professor Hélène Ruiz Fabri and a team of experts at the Max Planck Institute Luxembourg for Procedural Law, providing cutting-edge and rigorously peer-reviewed research on areas of international law that are often under-explored. MPEiPro will take a broad view of international procedure, examining it from three different angles: technical points of procedure within specific institutions or across similar organizations; comparative accounts of families of institutions within specific subject areas or with similar functions; and theoretical, interdisciplinary entries.