Within the context of social law, temporary agency work has always been subject of debate. The pursuit of more flexible forms of labour is at odds with maintaining decent labour relations. For that reason, ever since it was established, the UN organisation for labour issues, ILO, has focused on private work placement. In its early years it tended to prohibit or severely restrict private work placement, but gradually it came to acknowledge that, for instance, temporary agency work had positive aspects, and that a total ban was pointless. In 1997, this culminated in ILO convention 181, which was widely supported. This did not end the debate on non-standards forms of paid work. Which forms of work can be considered decent? How do they relate to human rights? What are the effects of globalisation? In the European context, too, (cross-border) temporary agency work has attracted extensive attention. Lastly, the Netherlands has its own, unique form of public-private regulation. The guiding principle in this book is whether Convention 181 still has value in this day and age. What are the developments in temporary agency work in the social domain? How do they relate to the wide range of flexible work forms that are increasingly catching up with temporary agency work? Decent flexibility is the challenge. Dr Fred van Haasteren (1949) started his career as a scientific associate at the Society and Enterprise Foundation (SMO). From 1978 onward, he worked in the Dutch temporary agency sector. In 1982 he became a board member of Randstad Nederland; in 1991 he became Vice-President of Randstad Holding. Among other things, he was also President of the platform of European temporary agency employers and of the global temporary agency employer umbrella organisation CIETT. He is still a board member of the Dutch Labour Standards Foundation (SNA) and an independent member of the NCP OECD. The social policy pursued by temporary employment agencies has always been at the centre of his activities.