In The UN Secretary-General and Moral Authority, contributors provide case studies of all seven former secretaries-general, establishing a much-needed comparative survey of each office-holder’s personal religious and moral values. From Trygve Lie’s forbearance during the UN’s turbulent formative years to the Nobel committee’s awarding Kofi Annan and the United Nations the prize for peace in 2001, the case studies all follow the same format, first detailing the environmental and experiential factors that forged these men’s ethical frameworks, then analyzing how their “inner code” engaged with the duties of office and the global events particular to their terms. Balanced and unbiased in its approach, this study provides valuable insight into how religious and moral leadership functions in the realm of international relations, and how the promotion of ethical values works to diffuse international tensions and improve the quality of human life around the world.