Many times over the years, as we have studied about Joseph Smith and his doctrinal teachings, we have asked ourselves, Wouldn't it be wonderful to have a book that would tell us what Joseph Smith taught on any given subject? As we have plowed through what seemed to be acres of material in the existing publications to find a single entry, we have longed for an easier way. This work is the result of that desire to simplify the process of learning about Joseph Smith and what he taught. We have tried to consult all relevant and available sources. A bibliography of source material is included at the back of the work. We have included both sources cited and sources consulted. The principal source has been the History of the Church. This seven-volume publication has been a literal gold mine, filled with precious ideas from the Prophet. In one sense, our work is an encyclopedia. It is arranged alphabetically and chronologically. Thus, the quotations on faith are listed under the letter F and appear in chronological order. One can readily see what Joseph Smith said or wrote on the subject of faith at different times in his prophetic career. At the end of many sections, following the general chronological presentations, we have placed reminiscent accounts of what others said Joseph taught that cannot be clearly dated.