[PristisoliTer]

Frank Herbert
Original Dune series (6 books)

Stephen R Donaldson
Chronicles of Thomas Covenant the Unbeliever (3 Books)
Second Chronicles of Thomas Covenant (3 Books)

Stephen King
Dark Tower Series (7 books)

Roger Zelazny
Amber Series (10 books)

Larry Niven
Ringworld Series (4 books, part of larger known space series)

Anne McCaffrey
Dragonriders of Pern (original trilogy + All the Weyrs of Pern to start off)



Wife likes:
Charlaine Harris
Southern Vampire Chronicles (11 books)

Kim Harrison
The Hallows Series (9 books)