Edited by Heiko Narrog, Professor at the Graduate School of International Cultural Studies, Tohoku University, and Bernd Heine, Emeritus Professor, Institute of African Studies, University of Cologne

Heiko Narrog is Professor at Tohoku University. He received a PhD in Japanese Studies from the Ruhr University Bochum in 1997, and a PhD in Language Studies from Tokyo University in 2002. He is the author of Modality in Japanese and the Layered Structure of the Clause (Benjamins, 2009), and Modality, Subjectivity, and Semantic Change: A Cross-Linguistic Perspective (OUP, 2012) as well as numerous articles in linguistic typology, semantics and language change, and Japanese linguistics.

Bernd Heine is Emeritus Professor at the Institute of African Studies, University of Cologne. He has held visiting professorships at universities across the world, including Guangdong University of Foreign Studies, La Trobe University, the University of Cape Town, Dartmouth College, and Universidade Federal Fluminense. His many publications include The Changing Languages of Europe (OUP, 2006) and The Genesis of Grammar: A Reconstruction (OUP, 2007), both with Tania Kuteva.

Bernd Heine and Heiko Narrog are co-editors of the OUP volumes The Oxford Handbook of Linguistic Analysis (2010; second edition 2015) and The Oxford Handbook of Grammaticalization (2010).

Alexandra Y. Aikhenvald, James Cook University
Umberto Ansaldo, University of Hong Kong
Peter Arkadiev, Russian Academy of Sciences
Walter Bisang, University of Zürich
Alexander R. Coupe, Nanyang Technological University
Éva Ágnes Csató, Uppsala University
Östen Dahl, Stockholm University
Mohssen Esseesy, George Washington University
Geoffrey Haig, University of Bamberg
Martin Haspelmath, Max Planck Institute for the Science of Human History
Bernd Heine, University of Cologne
Lars Johanson, University of Mainz
Marian Klamer, Leiden University
Timur Maisak, Russian Academy of Sciences
John McWhorter, Columbia University
Marianne Mithun, University of California Santa Barbara
Claire Moyse-Faurie, Lacito-CNRS
Ilana Mushin, University of Queensland
Heiko Narrog, Tohoku University
Seongha Rhee, Hankuk University of Foreign Studies
Hiram Smith, Penn State University
Pui Yiu Szeto, University of Hong Kong
John Whitman, Cornell University
Roberto Zariquiey, Pontificia Universidad Católica del Perú

"...there is little doubt that this volume is as a pivotal contribution to its field. As a companion to the study of grammaticalization across language families, it is here to stay. As a contribution to the debates on the nature and definition of grammaticalization, it delivers a considerable amount of new insights, puzzling questions and interesting hypotheses...everyone interested in grammaticalization theory should benefit from reading this collection of papers." - Pierre-Yves Modicom, Université Michel de Montaigne Bordeaux 3, LINGUIST List

"We can expect this collection of papers to stay a reference work for many typologists and grammaticalization scholars for the years to come... there is little doubt that this volume is as a pivotal contribution to its field." - Pierre-Yves Modicom, Université Michel de Montaigne Bordeaux, The Linguist