Mormonism: A Historical Encyclopedia helps readers explore a church that has gone from being an object of ridicule and sometimes violent persecution to a worldwide religion, counting prominent businesspeople and political leaders among its members (including former Massachusetts governor and recent presidential candidate Mitt Romney).

The encyclopedia begins with an overview of The Church of Jesus Christ of Latter-day Saints—six essays cover the church's history from Joseph Smith's first vision in 1820 to its current global status. This provides a context for subsequent sections of alphabetically organized entries on key events and key figures in Mormon history. A final section looks at important issues such as the church's organization and government, its teachings on family, Mormonism and blacks, Mormonism and women, and Mormonism and Native Americans. Together, these essays and entries, along with revealing primary sources, portray the Mormon experience like no other available reference work.