The United Nations has a vast outreach through its many agencies, funds, and programs-but that very fact can make it difficult for "outsiders" to understand.

Among the questions that arise: How can the UN promote human rights when its charter prohibits its intervention in the domestic affairs of sovereign states? Why do the five permanent members of the Security Council have veto power? Can a dysfunctional Security Council be circumvented? How is consensus on policy ever reached? Where does the money to run this enormous system come from? The list goes on. In response, this new text clearly explains the UN's history, functions, and day-to-day operations.

Ranging from development to disarmament, from electoral assistance to finance, the authors unveil the processes involved as diplomats and practitioners navigate the challenges of serving the common good while balancing opposing interests.