Malgosia Fitzmaurice is Professor of International Law at the School of Law, Queen Mary University of London and an associate member of the Institut de Droit International. She has delivered lectures at The Hague Academy of International Law, was involved in a multi stakeholder project funded by the EU Commission on environmental crime, is Editor in Chief of International Community Law Review journal (ICLR) and Queen Mary Studies in International Law, and has advised as expert on law of treaties. Panos Merkouris is Professor at the University of Groningen. In 2017 he was awarded the prestigious ERC Starting Grant for his 5-year project TRICI-Law (The Rules of Interpretation of Customary International Law). He has written extensively on law of treaties and on interpretation, has been cited in international reports and cases, and has advised as expert on these issues.

'At a time when treaties are being increasingly recognised as the central component of modern international law, this book presents an excellent selection of those key topics in the law of treaties that are continuing to undergo development.' Richard Gardiner, Visiting Professor, Faculty of Laws, University College London

• 1. Introduction; 2. Treaty genesis: concept of a treaty in international law, including its formation and motion; 3. Consent to be bound: The force behind the motion of treaties; 4. Treaty interpretation and its rules: of motion through time, 'Time-Will' and 'Time-Bubbles'; 5. Amendment/Modification/Revision of treaties: motion as change; 6. Treaties and their phthora: Withdrawing from and terminating/suspending treaties; 7. Concluding remarks.