Focuses on the advanced developments in the study of grammaticalization and related processes of change such as degrammaticalization, constructionalization, lexicalization, and petrification. This title addresses topical issues relating to the motivations, sources, defining features, and outcomes of these changes.

1. Acknowledgements; 2. Introduction: New reflections on the sources, outcomes, defining features and motivations of grammaticalization (by Breban, Tine); 3. Buhler's two-field theory of pointing and naming and the deictic origins of grammatical morphemes (by Diessel, Holger); 4. On the origins of grammaticalization and other types of language change in discourse strategies (by Waltereit, Richard); 5. Lehmann's parameters revisited (by Norde, Muriel); 6. "Paradigmatic integration": The fourth stage in an expanded grammaticalization scenario (by Diewald, Gabriele); 7. "The ghosts of old morphology": Lexicalization or (de)grammaticalization? (by Brinton, Laurel J.); 8. Grammaticalization, constructions and the grammaticalization of constructions (by Trousdale, Graeme); 9. Gradualness of grammaticalization in Romance. The position of French, Spanish and Italian (by De Mulder, Walter); 10. Development of periphrastic tense and aspect constructions in Irish and Welsh (by Ronan, Patricia); 11. Emergence and grammaticalization of constructions within the se me network of Spanish (by Melis, Chantal); 12. A discourse-based analysis of object clitic doubling in Spanish (by Rozas, Victoria Vazquez); 13. The many careers of negative polarity items (by Eckardt, Regine); 14. Author Index; 15. Subject Index