Arnfinn Muruvik Vonen is professor (since 1997) at the Faculty of Education Sciences, University of Oslo, Norway. With his professional specialisation in linguistics, he is currently responsible for courses in the sign language theory at the Department of Special Needs Education. His research in Deaf Studies has focused on linguistic and educational issues of bilingualism involving a signed and a spoken language, mostly in affiliation with Skådalen Resource Centre, a state-run centre for the education of deaf, hard-of-hearing, and deafblind individuals in Oslo. He is involved with the Signo Foundation (Norway) and the Amity Foundation (PR China) in a bilingual deaf education project in China ("SigAm"). His research interests include also the grammar of Norwegian Sign Language.