The new system of administration of justice at the United Nations, established in July 2009, has been considered one of the most important achievements in staff-management relations at the United Nations and the protection of each staff member's individual rights vis-a-vis the Organization. The Handbook on the Internal Justice System at the United Nations provides a detailed examination of the different facets of the system and its origins. This volume addresses first and foremost, United Nations staff members who want to learn about the new system and how it really works, as well as practitioners in the system as it examines important questions arising in their day-to-day practice. It also provides a comprehensive description of a cornerstone in the internal structure of the United Nations that may be of interest to the academic world of public international law.