John McWhorter is an Associate Professor of English and Comparative Literature at Columbia University. He earned a PhD in Linguistics from Stanford University. He is the author of several books, including The Power of Babel: A Natural History of Language; Nine Nasty Words: English in the Gutter; and Word on the Street, a book on dialects and Black English. He has also been published in outlets such as The New York Times and The Washington Post, and he has appeared on Dateline and Good Morning America, among other platforms.