Catherine Miller is a senior research fellow at the French Council of research (CNRS), IREMAM, Aix en Provence, FranceEnam Al-Wer is a Senior Teaching Fellow in Linguistics, University of Essex, UK.Dominique Caubet is Head of the CREAM-LACNAD, National Institute of Languages and Oriental Civilizations (INALCO), FranceJanet C. E. Watson, Professor of Arabic and Linguistics, University of Salford UK.

• Introduction 1. Arabic Urban Vernaculars: Development and Changes Catherine Miller Part 1: Migration, Urbanization and Language Change 2. The (R)urbanisation of Mauritania: Historical Context and Contemporary Developments Catherine Taine Cheikh 3. The Formation of the Dialect of Amman: From Chaos to Order Enam Al-Wer 4. Urbanization and Dialect Change: The Arabic Dialect of Tripoli (Libya) Christophe Pereira 5. Becoming Casablancan: Fessis in Casablanca as a Case Study Atiqa Hachimi 6. Two Cases of Moroccan Arabic in the Diaspora Angeles Vicente Part 2: Urban Vernaculars: Convergence and Divergence 7. Greetings in Beirut: Social Distribution and Attitudes towards Different Formulae Marie Aymee Germanos 8. Linguistic Levelling in Sanƒ ani Arabic as Reflected in a Popular Radio Serial Janet Watson 9. The Urban and Suburban Modes: Patterns of Linguistic Variation and Change in Damascus Hanadi Ismail 10. Segmental and Prosodic Aspects of Ksar el Kebir's Neo-Urban Variety Mohamed Embarki 11. The Use of Kashkasha/kaskasa and Alternative Means among Educated Urban Saudi Speakers Munira Al-Azraki Part 3: Multilibualism, Codeswitching and New Urban Cultures 12. Close Encounters of a Different Kind: Two Types of Insertion in Nigerian Arabic Codeswitching Jonathan Owens 13. Development and Linguistic Change in Moroccan Arabic-French Codeswitching Karima Ziamari 14. The Language of Cairo’s Young University Students Sherin Rizk 15. Rap and Rappers in Nouakchott (Mauritania) Aline Tauzin 16. Uses and Attitudes towards Hassaniyya Language among Nouakchott’s Negro-Mauritanian Population Alassane Dia