Deborah Tannen is the bestselling author of "The Argument Culture", "Talking from 9 to 5", "That's Not What I Meant", & "You Just Don't Understand", which was on "The New York Times" bestseller list for nearly four years, including eight months as number one. She is a professor at Georgetown University, in Washington D.C. "I Only Say This Because I Love You" is her seventeenth book.