Rob Penhallurick is the author of Studying the English Language (Palgrave Macmillan, 2003), and editor of Debating Dialect: Essays on the Philosophy of Dialect Study (University of Wales Press, 2000). He has also written two books on varieties of Welsh English, The Anglo-Welsh Dialects of North Wales (Peter Lang, 1991) and Gowerland and its language (Peter Lang,1994). He is a contributor to The Penguin Atlas of British & Irish History (2001) and the forthcoming second edition of Language in the British Isles (Cambridge University Press). His articles and essays to date have concentrated on varieties of English and their study. He has worked for three of the major dialect surveys of Europe: the Atlas Linguarum Europae, the Survey of English Dialects, and the Survey of Anglo-Welsh Dialects; and he is curator of the Department's Archive of Welsh English, which houses an extensive collection of audio recordings and transcriptions. The main areas of his current teaching and supervision are general linguistics, history of the English language, dialectology and sociolinguistics, language and identity, semiotics, film studies, and the origins of speech and writing.