Nineteen Eighty-Four
Animal Farm
Brave New World
Contact
The Foundation Series
The Foundation Prelude Series
The Robots Series (Read this series between books 3 and 4 of the Foundation series for the best experience. They're set in the same universe, but Robots books are set 17000 years earlier. Books 4 and 5 of Foundation series make references to this connection.)
The End of Eternity (Read between books 3 and 4 of Foundation)
The Hobbit
The Lord of the Rings (read The Hobbit first)
The Road
The Time Machine
The War of the Worlds
The Space Odyssey Series
Animal Farm
Brave New World
Contact
The Foundation Series
The Foundation Prelude Series
The Robots Series (Read this series between books 3 and 4 of the Foundation series for the best experience. They're set in the same universe, but Robots books are set 17000 years earlier. Books 4 and 5 of Foundation series make references to this connection.)
The End of Eternity (Read between books 3 and 4 of Foundation)
The Hobbit
The Lord of the Rings (read The Hobbit first)
The Road
The Time Machine
The War of the Worlds
The Space Odyssey Series