ABSTRACT
It is a privilege to have been asked to write a short afterword in this inspiring collection of articles. The question was if I could look back at the historical career and further prospect of the central concept of the book, the threshold approach, and embed this concept in the wider debate on border studies. Well then, let me begin by complimenting the editors to have followed, even meticulously, a central conceptual structure, on the basis of which and around which the individual or set of authors have written their contribution. By choosing a central conceptual framework this edited volume has most certainly gained cohesion and academic parallelism in such a way that the contributions interestingly feed into and complement each other.
