Frontmatter -- Preface -- Table of Contents -- Abbreviations -- 1. Sudanese Colloquial Arabic: The State of the Art -- 2. Chadian Arabic: The State of the Art -- 3. The Arabic Koine -- 4. Sudanese Colloquial Arabic in the Light of the Arabic Koine -- 5. Chadian Arabic in the Light of the Arabic Koine -- Notes to Ch. 5 -- Map of Chad and the Sudan -- References -- Index