Book excerpt: This book is the fruition of five years’ work in exploring the idea of superdiversity. The editors argue that sociolinguistic superdiversity could be a source of inspiration to a wide range of post-structuralist, post-colonial and neo-Marxist interdisciplinary research into the potential and the limits of human cultural creativity and societal renewal under conditions of increasing and complexifying global connectivity. Through case studies of language practices in spaces understood as inherently translocal and multi-layered (classrooms and schools, youth spaces, mercantile spaces and nation-states), this book explores the relevance of superdiversity for the social and human sciences and positions it as a research perspective in sociolinguistics and beyond.