John D. Mayer is a professor of psychology at the University of New Hampshire and a key innovator in intelligence research. He has written more than 125 scientific articles, books, and psychological tests, including the internationally known Mayer-Salovey-Caruso Emotional Intelligence Test (MSCEITT). He has lectured around the world and has appeared on NPR and BBC-TV. His work has been covered in The New York Times, Time, The Washington Post, and The New Republic. He lives in New Hampshire.