Today, there are an estimated 232 million international migrants around the world. Globalization, demographic shifts, conflicts, income inequalities and climate change will encourage ever more workers and their families to cross borders in search of employment and security. Migrant workers contribute to growth and development in their countries of destination, while countries of origin greatly benefit from their remittances and the skills acquired during their migration experience. Yet, the migration process implies complex challenges in terms of governance, migrant workers' protection, migration and development linkages, and international cooperation. The ILO works to forge policies to maximize the benefits of labour migration for all those involved.