The editors would like to thank a number of people for their support in the preparation of this book. We are first and foremost grateful to Cambridge University Press for publishing the book, in particular to the Cambridge Press Syndicate for accepting the book proposal, and to Helen Barton, Helena Dowson, Sarah E. Green, Jodie Hodgson, Katy Mack and Georgina Zaldua for their excellent support, guidelines and patience throughout every phase of the book and Gwynneth Drabble for copy-editing this book. We would also like to thank the anonymous reviewers for their valuable comments.

The book is a result of a joint research endeavour where a wide collection of researchers participate with their recent and most intriguing insights of their research on language, youth and identity in linguistically and culturally diverse urban spaces. We are grateful to each and every one of the 32 authors (22 women and 10 men) for sharing their knowledge, and for their thorough work in reading and commenting on each other's chapters.

Finally, the editors would like to thank the Norwegian UPUS-project (‘Developmental Processes in Urban Linguistic Settings’), the University of Oslo and the University of Utrecht for financial support. This work was partly supported by the Research Council of Norway through its Centres of Excellence funding scheme, project number 223265.