For the last few decades, language contact and language policies have been the subject of numerous investigations which have presented research results from the perspectives of different disciplines. However, there are hardly any studies linking the influence of the interaction among speakers of different contact languages or the creation of language policy with border issues, especially with regard to the creation or deconstruction of transnational and transcultural spaces. The book collects interdisciplinary studies in an attempt to build a bridge between linguistics, socio-cultural sciences and border studies in the broad sense. The authors contributing to this publication focus mainly on the linguistic, but also political and social phenomena resulting from making and crossing linguistic boundaries between different language communities. All the papers in this volume draw on the concept of creation and deconstruction of linguistic borders in different ways, and although the authors come from different disciplines within linguistics (or human sciences), they all focus on the question of the existence or absence of transnational and transcultural spaces caused by language contact and/or language policy making.