This guide provides links to sources of information relating to public policy and statistics connected with immigration and settlement

Migration (UNRIC Library Backgrounder)
International Organization for Migration (IOM)

Global Migration Data Analysis Centre
Migration law database
World migration report

Organisation for Economic Co-operation and Development (OECD)

International migration
International migration policies and data

United Nations

Demographic yearbook international migration characteristics
International migration report
International migration reports and resolutions
United Nations High Commissioner for Refugees (UNHCR)
Refworld a vast collection of reports and information relating to situations in countries of origin, policy documents and positions, and documents relating to international and natioal legal frameworks relating to refugee status
UNdata (search using the term 'migration' or 'refugee' since immigration is not used in this database

World Bank

Migration and Remittances