Theory of Fun for Game Design
Raph Koster
March: Book One
John Lewis
March (1)
Vacuum Diagrams
Stephen Baxter
Xeelee Sequence (5)
Where's My Cow?
Terry Pratchett
Discworld (34.50)
Out of the Silent Planet
C.S. Lewis
The Space Trilogy (1)
Perelandra
The Space Trilogy (2)
That Hideous Strength
The Space Trilogy (3)