I'm a fantasy fan. I'd recommend any Robin Hobbs or Tad Williams Dragonbone Chair for classic, epic, fantasy novels.
I'd suggest Philip Pullman's Northern Lights series for beautifully written, thought provoking fantasy.
Kelley Armstrong, Bitten, Broken, etc... for a weird crossover between horror, fantasy and chick-lit. Good for light reading. They're like the chocolate malteser of the book world.
Jasper Fforde for clever humour/fantasy; Pratchett for a more slapstick comedy fantasy (full of puns in the early books, but getting more sophisticated over the years and very clever).
John Wyndham or Aldous Huxley if you want real, classic science fiction and of course, Tolkien if you want to start with the classics. I loved the Hobbit but only coped with Lord of The Rings after seeing the movies!
Margaret Attwood, Oryx & Crake for a post apocolyptic beauty of a book and I Am Legend for a similarly bleak novel (can't remember the author).
Hope this helps a bit. I love fiction and fantasy and could go on, but even I'm getting a bit bored with myself now!