The first volume of the Brigham Young Journals begins with the prophet’s baptism and ends with his marathon efforts to endow the Nauvoo saints before their westward exodus. As the first installment in a four-part series, the book offers readers an intimate portrayal of Brigham Young, featuring elements such as his phonetic spelling, missionary labors, and devotion to his family. In this interview, Ronald K. Esplin explains what he and historian Brent M. Rogers find most fascinating about the journals.