The Center for Migration Studies is an organization based in the United States that is committed to facilitating the study of socio-demographic, historical, economic, political, legislative and pastoral aspects of human migration and refugee movements. Its specialized library of over 24,000 volumes is one of the most comprehensive libraries on migration, refugees and ethnic groups. The catalogue permits researchers to narrow their search to a particular material type, such as dissertations, biographies, bibliographies, serials, etc.