Anathem
Neal Stephenson
Gateway
Frederik Pohl
Heechee Saga (1)
Tier City
Kyn Lafortune
Alchemist's Truth (1)
Cadetti dello spazio
Robert A. Heinlein
That Hideous Strength
C.S. Lewis
The Space Trilogy (3)
Perelandra
The Space Trilogy (2)
Out of the Silent Planet
The Space Trilogy (1)
Mere Christianity