Allen C. Guelzo has written many books about the life and legacy of Abraham Lincoln. The most recent is “Our Ancient Faith: Lincoln, Democracy, and the American Experiment,” which explores Lincoln’s ideas about democracy and how they led America through the Civil War.

Guelzo is scheduled to deliver the keynote address at the Abraham Lincoln Association’s annual banquet this Thursday in Springfield, Illinois. He's also scheduled to talk with fellow Lincoln scholar Michael Burlingame on Friday.