Book excerpt: This volume and its companion one "Theoretical and empirical issues in grammaticalization" offer a selection of papers from the "Third International Conference New Reflections on Grammaticalization," held in Santiago de Compostela in July 2005. From the rich programme of the conference (over 120 papers), the twelve contributions included in this volume were carefully selected to reflect the state of current research in grammaticalization and suggest possible directions for future investigations in the field. Combining theoretical discussions with the analysis of particular test cases from a wide range of languages from various language families, the selected papers focus on such central questions as the need for a broader notion of grammaticalization, the distorting effects of grammaticalization on grammar, the areal perspective in grammaticalization and the relevance of contact-induced change to grammaticalization. Other topics discussed include the development of markers of textual connectivity and the emergence of cardinal numerals and numeral systems.