Enos was third in the series of record keepers who maintained the record of the Nephites, a set of metal plates containing the spiritual and secular history of the Nephites. Enos was given charge of the record by his father, Jacob, son of Lehi and brother of Nephi. Both Nephi and Jacob had kept the record previously, recording First and Second Nephi and the Book of Jacob, respectively. Enos's contribution to the record, the Book of Enos, consists of a single chapter, told in the first person, describing his own conversion and subsequent ministry.