Most literature featuring Helen focuses on its history as a mining town and its visionary restoration as a Bavarian-themed town in an alpine setting. As a setting for fictional novels, Helen is a bit slighted, but plenty non-fiction has been written about the town and its surrounding area. For history on the Native American settlements in the area, check out The Nacoochee Mount by George G. Heye, F. W. Hodge, and George H. Pepper (New York: Museum of the American Indian, Heye Foundation, 1918). A more general history of White County can be found in the aptly-titled, A History of White County, 1857-1980 (White County History Book Committee, 1981). Helen's and White County's prominent mining industry is highlighted in Exploration for Mineral Deposits in White County, Georgia (Washington, D.C.: U.S. Government Printing Office, 1964). Nacoochee Valley: Its Times and Its Places offers another general history of the area (Clarkesville, Ga.: n.p., 1989). 

For further reading, look for Fred Brown's and Nell Jones's The Georgia Conservancy's Guide to the North Georgia Mountains, 3d ed. (Atlanta: Longstreet Press, 1996) and John C. Inscoe's "Appalachian Otherness, Real and Perceived," in  The New Georgia Guide (Athens: University of Georgia Press, 1996).