Short answers, pulled from the story.
The Pyramid Texts appeared inside the pyramids of kings during the Old Kingdom. These religious documents were initially reserved for the king only and later appeared in the tombs of royal wives towards the end of this period.
Nearly half of the spells in the Coffin Texts derive from those in the Pyramid Texts. This transition occurred around page 193 of Smith 2017, marking a shift where spells were inscribed on coffins rather than tomb walls during the Middle Kingdom.
The Book of the Dead became the most famous example of these texts during the New Kingdom era. Copies of the Book of the Dead were widely popular among different social classes by this time as they replaced earlier forms of royal-only literature with a more accessible format for the general population seeking eternal life.
These documents centre on representations of Nut, the sky goddess, who gave birth to the rejuvenated sun in the morning. From the tomb of Ramesses IV onwards two of these Books of the Sky were usually placed next to each other on the ceiling of royal tombs.
The Books of Breathing emphasized restoration of physical functions like breathing and speaking in the afterlife. A person could regain their voice and breath if they followed the correct spells found inside these books which provided specific instructions for maintaining bodily integrity during the long sleep of death.
The Book of Traversing Eternity appeared as a new addition during the Ptolemaic era when Greek rule influenced Egyptian funerary practices. Despite foreign rulers taking power, ancient Egyptians continued using established formulas for burial protection while traditional symbols persisted alongside new administrative realities without altering the fundamental goal of eternal existence.