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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.

International Cultural Heritage Law Collection

Explore our collection on international cultural heritage law. Learn about the protection of cultural property during armed conflict, intangible cultural heritage, and the challenges presented by globalization.

Featured content is free to access until 31 August 2020.


Site News

July 30, 2020

New Titles

3 new titles have been added to OSAIL.

July 27, 2020

New Editorial

'The Wars of Louis XIV in Treaties VII: The Grand Alliance of 1689 and the Nine Years' War' is now available on OHT.

July 21, 2020

New and Updated Articles

1 new and 11 updated articles are now available on MPEPIL.

July 9, 2020

New Articles

8 new articles are now available on MPEiPro.

Latest Content


Björn Ahl