The Max Planck Encyclopedias of International Law

Welcome to the home of the most trusted reference work in international law, the Max Planck Encyclopedia of Public International Law, as well as the newly-launched Max Planck Encyclopedia of International Procedural Law. The two Encyclopedias can be searched and browsed together, or separately by using appropriate filters. Find out more about the Encyclopedias and their teams by following the links on this page.

Announcing the Launch of the Max Planck Encyclopedia of International Procedural Law

"The MPEiPro team is proud to introduce the Max Planck Encyclopedia of International Procedural Law to the community of all those who are interested in international procedure." Read the full letter from the MPEiPro General Editor.

The Ultimate International Procedural Law Collection & Quiz

To celebrate the launch of the Max Planck Encyclopedia of International Procedural Law we have curated a collection of free articles illuminating the systems and processes through which international law is made, interpreted, and adjudicated in practice. Explore the collection and take our quiz to discover 15 intriguing things you should know about international legal procedure.

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