The Handmaid's tale - Margaret Atwood
The Crystal Cave - Mary Stewart
Lord of the Rings - JRR Tolkien
Moon is A Harsh Mistress - Robert Heinlein
Nine Coaches Waiting - Mary Stewart
1984 - George Orwell
Anthem - Ayn Rand
Bourne Identity- Robert Ludlum
Dune - Frank Herbert
The Little Prince - Antoine de Saint-Exupery
These are the ones that came to mind first hand, all my books have been boxed due to moving, so if I saw more titles, this list would probably change!