One of the best shorter books is William Lee White's 'Let Us Die Like Men; The Battle of Franklin, November 30, 1864' from the Emerging Civil War series. Wiley Sword's 'The Confederacy's Last Hurrah' is a pretty good narrative, but Sword's treatment of Hood is extremely one-sided. To me, the gold standard for Franklin books is Eric Jacobson 'For Cause and For Country - A Study of the Affair at Spring Hill and the Battle of Franklin'