In 2015, the Church released an essay detailing the methods and circumstances of the translation of the Book of Mormon.  Some are shocked to find out that Joseph often used a seer stone in a hat (in addition to the Nephite Interpreters/Urim and Thummim) and that the gold plates were sometimes not even present (contrary to what is shown in paintings). This surprise is sometimes the catalyst that launches doubt and skepticism and some leave the church.  The author gives several important explanations culminating in a discussion of "presentism."