Shadows of Sanctuary
Robert Lynn Asprin
Thieves' World (3)
The Red Queen
Philippa Gregory
The Cousins' War (2)
The Green Hills of Earth
Robert A. Heinlein
Future History or "Heinlein Timeline" (16)
Ultima
Stephen Baxter
Proxima (2)
Pyramids
Terry Pratchett
Discworld (7)