This comprehensive second edition Research Handbook discusses a wide range of timely questions and dilemmas ensuing from the present state of European social security law. Presenting a kaleidoscopic concept of social security, a new generation of leading experts identifies future lines of inquiry that are likely to dominate the discourse in the coming years.Chapters analyse contemporary debates through a range of perspectives, critically examining crucial dimensions of European social security law. These dimensions include social security as a human right, minimum standards, protection of mobile persons, and European social security law in a global context. Through this exploration, new challenges and further lines of research are identified, providing a source of inspiration for the development of this fundamental field of law.Covering a breadth of topics and research, scholars and academics alike will find this Research Handbook to be an invaluable source of information. Lawyers and policy makers will also benefit from the up-to-date guide to the various fields of European social security.