Roberta Shaffer from the Library of Congress speaks with author Walter Isaacson, who will appear at the 2012 Library of Congress National Book Festival on Sept. 22 on the National Mall in Washington, D.C.

Stephen L. Carter: 2012 National Book Festival

Listen to interviews with some of the award-winning authors who participated in the 2012 National Book Festival. The 2012 National Book Festival, organized and sponsored by the Library of Congress, was held on Saturday, September 22 and Sunday, September 23, 2012, on the National Mall in Washington, D.C.