Drawing upon socio-legal research, this insightful book considers labour migration within the context of ('eastward') European Union enlargement.Prior to the 2004 and 2007 EU enlargements, many of the older Member States voiced concerns that labour market disruption and benefit tourism would occur following the extension of free movement rights to nationals of the post-communist central and eastern European (CEE) accession states. Such anxieties shaped the formal rights granted to CEE accession nationals in the aftermath of enlargement. Set against this backdrop, the book examines the status, entitlement and experience of post-accession migrants. Specifically, the volume explores the legal rights of accession nationals to access employment, their experiences once in work and their engagement with broader family and social entitlement.By combining analysis of the legal framework governing free movement-related rights with analysis of qualitative data gained from interviews with Polish migrants, the volume is able to speculate on the significance the status of Union citizenship holds for nationals of the recently-acceded CEE Member States. Citizenship, therefore, is conceptualised not merely as rights but as a practice; a real 'lived' experience. The citizenship status of migrants from the CEE Member States is shaped by formal legal entitlement, law in action - as it is implemented by the Member Sates and 'accessed' by the migrants - and social and cultural perceptions and experiences 'on the ground'.