Adam Day is Head of UN University Centre for Policy Research in Geneva. He co-led the Secretariat of the UN High-Level Advisory Board on Effective Multilateralism and supported the Secretary-General’s Our Common Agenda report. He previously served as Senior Political Advisor to the UN peace operation in the Democratic Republic of the Congo, and in UN operations in Sudan, South Sudan, and the Middle East. A former human rights lawyer, Adam worked for Human Rights Watch, the International Criminal Tribunal for the former Yugoslavia, and Open Society Justice Initiative in Cambodia. Amongst many publications on complexity, Adam’s previous book, States of Disorder, applies complexity thinking to UN state-building.