In 1938, Joseph Fielding Smith and his assistants in the Church Historian's Office produced Teachings of the Prophet Joseph Smith, a valuable collection of the sermons and writings of the Prophet Joseph. The revealed truths contained in that volume have blessed the lives of countless Church members. In 1976, Dr. Robert J. Matthews of Brigham Young University greatly added to the usefulness of Teachings by expanding its subject index. Scriptural Teachings of the Prophet Joseph Smith builds on the solid foundation provided by these two editors.