Book excerpt: This is a book about language and education in one of the smallest European Union member-states, Luxembourg. It presents the results of an ethnographic study of code-switching and language ideologies among transnational, luso-descendant youngsters attending a number of youth centres in Luxembourg city. It offers a comprehensive description of the processes of construction and negotiation of new, emergent identities and ethnicities. The author considers the implications of these results for language-in-education policy, including the EU policy of multilingualism. He criticizes mother-tongue education and advocates instead the use of «literacy bridges». Clearly argued and widely applicable, this book is essential reading for students and researchers interested in multilingualism, migration and education.