The Great Apostasy by James E. Talmage
I just finished reading The Great Apostasy by Dr. James Edward Talmage. Despite the fact that he was a president of the University of Utah, thus a Ute fan, his 102 year-old book still fills a dark room with brilliant light. Check out its PDF, scanned from the stacks at Brigham Young University (go Cougars!) at http://is.gd/iRzImq.