David CrystalDavid Crystal is Honorary Professor of Linguistics at the University of Bangor, UK. He is a writer, editor, lecturer and broadcaster who has specialised for over 50 years on all aspects of the English language. His books include The Cambridge Encclopedia of the English Language (2019) which is now in its third edition, as well as Sounds Appealing (2018) and We Are Not Amused (2017). Read More Read Less