Koldo Zuazo is a Basque linguist, professor at the University of the Basque Country and specialist in Basque language dialectology and sociolinguistics. His main contribution has been the study and classification of Basque dialects and the indication of their possible places of origin. He has worked on the formation of Standard Basque. Gregor Benton is a student of Basque and Emeritus Professor of Chinese history at Cardiff University. He has translated books from many languages.