Escott, Colin. The Grand Ole Opry: The Making of an American Icon. Nashville: Center Street, 2006. An authorized (and somewhat sanitized) look at the Grand Ole Opry . Lots of pictures, reminiscences, and short sidebars make it an attractive coffee-table book.
McGuire, Jim. Nashville Portraits: Legends of Country Music. Guilford, CT: The Lyons Press, 2007. Sixty stunning photographs of country music legends including Johnny Cash, Waylon Jennings, Doc Watson, and Dolly Parton. The companion book to an eponymous exhibit that debuted in 2007.
Sherraden, Jim, Paul Kingsbury, and Elek Horvath. Hatch Show Print: The History of a Great American Poster Shop. San Francisco: Chronicle Books, 2001. A fully illustrated, beautiful book about Hatch Show Print, the Nashville  advertising and letter press founded in 1897.