Historian Doris Kearns Goodwin speaks on at the College of St. Catherine, in St. Paul, Minn., in this March 7, 2002, photo. Goodwin, who has acknowledged lifting material from sources without giving proper credit, will address a "Celebration of Bookselling" party, a highlight of BookExpo America, which comes to New York May 3-5. (AP Photo/Janet Hostetter)