This volume in the 'Brill Research Perspectives in Comparative Discrimination Law' compares sex discrimination protection through three thematic lenses. Firstly, it charts and compares the evolution sex discrimination protection in human rights law in three treaty-bodies - the CEDAW Committee, the HRC and the CESCR. Second, it traces the development of sex discrimination protection in three domestic law frameworks ? the United States, Australia and India. Finally, it compares the development of sex discrimination protection in international law with its development in the domestic laws of the three countries and analyses the implications of that comparison. Despite differences in the translation of international approaches to sex discrimination into domestic law and differences in social, political and cultural contexts, women appear to face similar limitations in accessing justice through sex discrimination frameworks.