Sandrine Zufferey is a professor at the Institute of French Language and Literature, University of Bern, Switzerland. She is the author of two research monographs on the topic of language acquisition and pragmatics, and the co-author of four textbooks. She has also published extensively on the topic of discourse connectives. Liesbeth Degand is a professor at the Institute for Language and Communication, UCLouvain, Belgium. She is an experienced project leader of international research networks in the area of discourse markers. She has published extensively on the categorization of discourse markers as linguistic expressions at the discourse-grammar interface.