Paul J. Hopper is Thomas S. Baker Professor of English and Linguistics at Carnegie Mellon University. His publications include Grammaticalization (co-authored with Elizabeth Closs Traugott, Cambridge, 1993), A Short Course in Grammar (1999), The Limits of Grammaticalization (co-edited with Anna Giacalone-Ramat, 1998) and Frequency and the Emergence of Linguistic Structure (co-edited with Joan Bybee, 2001). Elizabeth Closs Traugott is Professor of Linguistics and English at Stanford University. Her publications include A History of English Syntax (1972), Linguistics for Students of Literature (co-authored with Mary L. Pratt, 1980), Grammaticalization (co-authored with Paul J. Hopper, Cambridge, 1993) and Regularity in Semantic Change (co-authored with Richard B. Dasher, Cambridge, 2001).

• Preface to the second edition and acknowledgements; List of abbreviations; 1. Some preliminaries; 2. The history of grammaticalization; 3. Reanalysis; 4. Pragmatic factor; 5. The hypothesis of unidirectionality; 6. Clause-internal morphological changes; 7. Grammaticalization across clauses; 8. Grammaticalization in situations of extreme language contact; 9. Summary and suggestions for further work; References; Index of names; Index of languages; General index.

"The book is a lucid and highly readable discussion of grammaticalization...an excellent treatment of a central aspect of language." Language