This manual describes the role of the United Nations High Commissioner for Refugees around the world. It addresses the main aspects of the international protection of persons of concern to the United Nations High Commissioner for Refugees (UNHCR). Persons of concern include asylum seekers, internally displaced persons, refugees, and stateless persons. The manual seeks to foster a common understanding of international protection among UNHCR staff, as well as familiarize UNHCR partners (governmental and non-governmental) with the basic principles of international protection.