The Introduction to the Book of Mormon says:

"The crowning event recorded in the Book of Mormon is the personal ministry of the Lord Jesus Christ among the Nephites soon after his resurrection. It puts forth the doctrines of the Gospel, outlines the plan of salvation, and tells men what they must do to gain peace in this life and eternal salvation in the life to come."

I am thankful for the Book of Mormon and know it is true. It teaches of the Savior's Gospel.