Geoffrey Nunberg, a linguist, is a professor at the UC Berkeley School of Information. Since 1987, he has done a language feature on NPR’s Fresh Air, and his commentaries have appeared in the New York Times and many other publications. He is the emeritus chair of the Usage Panel of the American Heritage Dictionary and a winner of the Linguistic Society of America’s Language and the Public Interest Award. His previous books include Talking Right and Going Nucular. Nunberg lives in San Francisco.