This volume captures the gaps and the progress in human rights protection of undocumented and precarious status migrant workers. The contributors look for developments in human rights law, human rights institutions or governance, and in the organizing and experiences of civil society and migrant workers. In doing so, this volume demonstrates how and why international rights regimes (fail to) protect hyper-precarious migrant workers and recommends what is needed to ‘make rights’ a reality. The contributors are academics, legal practitioners, non-profit workers, activists, migrants—writing from around the world. Effective human rights protection is examined in the context of international and regional normative frameworks; diverse national and transnational contexts; and from the bottom-up perspective of workers and civil society.