Testimony of the Book of Mormon

The Book of Mormon is just another Testament of Jesus Christ through the Prophet Joseph Smith with the power of God. We can know if the Book of Mormon is true if we sincerely pray with a real intent of heart asking Heavenly Father specifically; "If the Book of Mormon is true?"
In the Book of Mormon in Moroni 10:3-5;

3 Behold, I would exhort you that when ye shall read these things, if it be wisdom in God that ye should read them, that ye would remember how merciful the Lord hath been unto the children of men, from the creation of Adam even down until the time that ye shall receive these things, and ponder it in your hearts.
4 And when ye shall receive these things, I would exhort you that ye would ask God, the Eternal Father, in the name of Christ, if these things are not true; and if ye shall ask with a sincere heart, with real intent, having faith in Christ, he will manifest the truth of it unto you, by the power of the Holy Ghost.
5 And by the power of the Holy Ghost ye may know the truth of all things.

I know that the Book of Mormon is true! I have prayed about it and I received my answer through the power of the Holy Ghost. And I like to invite everyone to read the Book of Mormon and pray about it. Because I can promise you that you will know if it is true. That is the only way you can receive spiritual truth: through prayer and reading!