They do it with mirrors
Agatha Christie
Miss Marple (6)
A Clash of Kings
George R. R. Martin
A Song of Ice and Fire (2)
The Mote in God's Eye (Moties Series 1)
Larry Niven & Jerry Pournelle
Motes Series (1)
Dragonflight
Anne McCaffrey
Dragonriders Of Pern (1)
The Stone Sky
N. K. Jemisin
The Broken Earth (3)
The Fifth Season
The Broken Earth (1)
The Obelisk Gate
The Broken Earth (2)