Parley P. Pratt joined the Church of Jesus Christ of Latter-day Saints in 1830 and was murdered in 1857 by the estranged husband of his twelfth plural wife. An original member of the Church's Quorum of the Twelve Apostles, Pratt's writings helped define Mormon theology and identity, and his hymns remain popular today. This collection of essays uses Pratt's life and writings as a means for gaining insight on early Latter-day Saint history, including the Church's initial internationalization, vibrant print culture, development of a unique theology, family dynamics, and the Mountain Meadows Massacre.