1. Preface; 2. Introduction: In search of grammaticalization (by Fischer, Olga); 3. On directionality in language change with particular reference to grammaticalization (by Haspelmath, Martin); 4. Rescuing traditional (historical) linguistics from grammaticalization theory (by Joseph, Brian D.); 5. The English s-genitive: A case of degrammaticalization? (by Rosenbach, Anette); 6. An investigation into the marginal modals dare and need in British present-day English: A corpus-based approach (by Taeymans, Martine); 7. Redefining unidirectionality: Is there life after modality? (by Ziegeler, Debra); 8. From pronominalizer to pragmatic marker: Implications for unidirectionality from a crosslinguistic perspective (by Yap, Foong Ha); 9. Conditionals and subjectification: Implications for a theory of semantic change (by Visconti, Jacqueline); 10. Unidirectionality in the grammaticalization of modality in Greek (by Tsangalidis, Anastasios); 11. How cognitive is grammaticalization? The history of the Catalan perfet perifrastic (by Detges, Ulrich); 12. Perfect and resultative constructions in spoken and non-standard English (by Miller, Jim); 13. Grammaticalization and standardization (by Laitinen, Lea); 14. External factors behind cross-linguistic similarities (by Herlin, Ilona); 15. What constitutes a case of grammaticalization? Evidence from the development of copulas from demonstratives in Passamaquoddy (by Ng, Eve); 16. Multi-categorial items as underspecified lexical entries: The case of Kambera wangu (by Klamer, Marian A.F.); 17. The acquisition of polysemous forms: The case of bei2 ("give") in Cantonese (by Wong, Kwok-shing); 18. Phonetic absence as syntactic prominence: Grammaticalization in isolating tonal languages (by Ansaldo, Umberto); 19. Grammaticalization of word order: Evidence from Lithuanian (by Say, Sergey)