Looks like it's 11 for me:
- Dune - Frank Herbert
- 1984 - George Orwell
- Fahrenheit 451 - Ray Bradbury
- The Lord of the Rings - JRR Tolkien
- The Hunger Games - Suzanne Collins
- Great Expectations - Charles Dickens
- Alice in Wonderland - Lewis Carroll
- Charlotte's Web - EB White
- The House at Pooh Corner - AA Milne
- The Wind in the Willows - Kenneth Grahame
- A Brief History of Time - Stephen Hawking