Key points from this section:

• Olive Leaf Revelation: This section, given in December 1832 and January 1833, is often referred to as the “Olive Leaf” revelation, symbolizing peace and instruction from the Lord.
• Degrees of Glory: It elaborates on the different degrees of glory (Celestial, Terrestrial, and Telestial) and the laws governing each, emphasizing the importance of living according to divine law to progress spiritually.
• School of the Prophets: The revelation includes instructions for establishing the School of the Prophets, a place for Church leaders to receive spiritual and temporal education3"

Read this chapter for free at https://byustudies.byu.edu/online-book/doctrine-and-covenants-contexts/section-88.