An intimate view of the American prophet in the 1830's amd 40's gathered from the journals of those who knew him personally or saw him in action in the days of the young and burgeoning LDS church. Each chapter has different recollection, and they are organized chronologically.
The gems are the "lost" teachings of Joseph Smith. These people remember things that Joseph Smith taught them. One of the gems is Philo Dibble's account of Joseph Smith and Sydney Rigdon receiving the Vision of the Degrees of Glory. Another is Parley P. Pratt's account of Joseph Smith rebuking the guards a Richmond Jail.