This sixth volume of the Documents series contains personal letters, revelations, discourses, minutes, legal documents, and financial documents, among other documents. The documents in the volume trace the establishment of Far West, Missouri, as the center place of Zion; the spread of Mormon settlements in northwestern Missouri; Joseph Smith’s incarceration in Clay County, Missouri; the Saints’ expulsion from the state; and initial efforts to establish Church settlements in Illinois and in Iowa Territory. The documents highlight Smith’s continued efforts to remove dissension from the Church, establish a city of Zion, protect the Saints from anti-Mormons, and prepare the Quorum of the Twelve Apostles for a mission to Europe.