The website for The Church of Jesus Christ of Latter-day Saints has many great articles by general authorities on the topic of missionary work and preparing for a mission. Here is the list I have made and I try to keep up-to-date. There are many General Conference talks and magazine articles and other website content about missionary work, but in order to keep this list to a reasonable length, I’m primarily only including talks here from prophets and apostles. Let me know in the comments or through the contact form if I’m missing any good talks on the subject of missionary work or mission preparation.