I recently finished Brandon Sanderson's first Mistborn trilogy -The Final Empire through Heroes of Ages - and loved all three books. They're incredible works of storytelling and some of the best fantasy out there. Sanderson is easily one of the best fantasy writers alive. He is also a devout Latter-day Saint. As I was reading his books again and again I kept coming across ways that Mormonism influenced his writing in crucial ways, but was shocked to find so little online exploring these influences. This article is my attempt to demonstrate some of the major ways that LDS scripture, history, theology, and culture deeply influence Sanderson's writing and appear in these books.