Robert McColl Millar is Professor in Linguistics and Scots Language at the University of Aberdeen. His particular interests lie in the present use and history of Scots, in social dialectology and in the effects of language contact. His books include Northern and Insular Scots (Edinburgh University Press, 2007), Modern Scots: An Analytical Survey (Edinburgh University Press, 2018) and A Sociolinguistic History of Scotland (Edinburgh University Press, 2020).