The UN Migrant Workers Convention is the most comprehensive international treaty in the field of migration and human rights. Adopted in 1990 and in force since 2003, it establishes the minimum standards of human rights protection to which migrant workers and members of their families are entitled. However, it is the least well known of the core international human rights instruments and has so far been ratified by only 51 states. This volume shines new light on obstacles and opportunities facing the Convention, its added value in international human rights law and its application in selected state parties. It combines the expertise of academics and practitioners, with the contributions of the latter informed by work on policy and advocacy in NGOs, international organisations and specialised agencies.