A good read for those who want to understand the difficulties in defining a regulatory floor for new types of work in fragmented arenas of crossborder industrial relations. Similarly, those looking for inspiration about options to engage with the obstacles in practice are well-served here. In addition, the pages are filled with many important observations regarding the more fine-grained realities that posted workers face: from their temporary status and lack of embeddedness in foreign host countries to the organizing difficulties they confront. Also, the explanations of regulatory details of posted work are informative, especially those about the political and legal rationales for defining posting within the framework of the European treaties as an economic freedom of service providers. This relevant observation points to the ideological cleavages around decent work more generally.(ILR Review) Ines Wagner's Workers without Borders provides a good example of the kind of scholarship which the precarization trend requires, focusing in particular on the dark underside of labor market integration among European Union economies. It is a message which policy elites and the public writ large badly need to hear.(Social Forces)