Jutta Brunnée is Professor of Law and Metcalf Chair in Environmental Law at the University of Toronto. Stephen J. Toope is President and Vice-Chancellor of the University of British Columbia.

'Jutta Brunné and Stephen Toope have written an engagingly readable and perceptive book that draws fruitfully on some of Lon Fuller's ideas, as they explore the ways in which international norms and obligations have emerged and evolved during recent decades.' Matthew H. Kramer, Transnational Legal Theory

• Introduction; 1. An interactional theory of international legal obligation; 2. Shared understandings: making and unmaking international law; 3. Interactional law and compliance: law's hidden power; 4. Climate change: building a global legal regime; 5. Torture: undermining normative ambition; 6. The use of force: normative ebb and flow; Conclusion.

Jutta Brunnée is Professor of Law and Metcalf Chair in Environmental Law at the University of Toronto. Stephen J. Toope is President and Vice-Chancellor of the University of British Columbia.

'Jutta Brunné and Stephen Toope have written an engagingly readable and perceptive book that draws fruitfully on some of Lon Fuller's ideas, as they explore the ways in which international norms and obligations have emerged and evolved during recent decades.' Matthew H. Kramer, Transnational Legal Theory

• Introduction; 1. An interactional theory of international legal obligation; 2. Shared understandings: making and unmaking international law; 3. Interactional law and compliance: law's hidden power; 4. Climate change: building a global legal regime; 5. Torture: undermining normative ambition; 6. The use of force: normative ebb and flow; Conclusion.