Pres Zundel has asked those receiving a Living-Ordinance Recommend for the first time (to receive their own endowment) to review and be prepared to discuss the following:
Church Handbook Sections 27.0 to 27.2 , which includes these topics:
27.0 - Introduction to Temple Ordinances for the Living
27.1 - Receiving Temple Ordinances
27.2 - The Endowment
Elder Bednar's message: Temple Ordinances: Preparing to Return to God’s Presence
These topics & videos on the church website: