In his October 2014 Conference Address on Joseph Smith, Neil L. Andersen stated:

To the youth listening today or reading these words in the days ahead, I give a specific challenge: Gain a personal witness of the Prophet Joseph Smith. Let your voice help fulfill Moroni’s prophetic words to speak good of the Prophet. Here are two ideas: First, find scriptures in the Book of Mormon that you feel and know are absolutely true. Then share them with family and friends in family home evening, seminary, and your Young Men and Young Women classes, acknowledging that Joseph was an instrument in God’s hands. Next, read the testimony of the Prophet Joseph Smith in the Pearl of Great Price or in this pamphlet, now in 158 languages. You can find it online at LDS.org or with the missionaries. This is Joseph’s own testimony of what actually occurred. Read it often. Consider recording the testimony of Joseph Smith in your own voice, listening to it regularly, and sharing it with friends. Listening to the Prophet’s testimony in your own voice will help bring the witness you seek. (emphasis added)