In the News section of Monday’s issue, we take a look at Harper’s approach to audio and offer an analysis of the New York Times’s new e-book and combined bestsellers lists. In Retailing, a story on bookselling in the Midwest finds new booksellers emerge as others move on. A feature on Civil War books looks at how publishers are marking the sesquicentennial of a historic conflict. There is a profile of Lisa Lutz, author of Heads You Lose, and a Q&A with Marcia Clark, the former Los Angeles prosecutor from the O.J. Simpson trial and author of Guilt by Association. The Soapbox explains how one bookstore uses its Espresso Book Machine.