Read the ABC's of great literature

I just don’t have the time to read so much AHHH!!!

This concept was introduced to me via the blog of a complete stranger.
The idea is to read one book of an author for each letter of the alphabet in one year. That’s pretty intense because it gives only 2 weeks per book. I tend to be a pretty damn slow reader, so I’m going to be a little flexible about the timing, but I’m definitely going to try.
My theme is “Books I should have read by now.” Maybe it’s not terribly exciting, but even though I consider myself pretty well read, I often find that I’ve missed exactly the most important, greatest books. So this year is going to be about me trying to patch up the holes in my literary experience.
There are a few letters for which I have not yet thought of an author or a book, any suggestions would be appreciated wildly.

Austen, Jane, Pride and Prejudice
Bronte, Charolotte, Jane Eyre
Cervantes, Miguel de, Don Quixote
Dostoyevsky, The Brothers Karamazov
Eliot, George, Middlemarch
Fitzgerald, F, Scott. Tender is the Night
Gogol, Nikolai, Dead Souls: A Novel
H ?
Joyce, James, Dubliners
Kafka, Franz, The Trial
Le Carre, John, A Perfect Spy
Milton, John, Paradise Lost
Nabokov, Vladimir, Lectures on Russian Literature
Orwell, George, 1984
Proust, Marcel, Swann’s Way
R ?
Sedaris, David, Naked
Tolstoy, Leo, War and Peace
Udall, Brady, The Miracle Life of Edgar Mint
Vonnegut, Kurt, Slaughterhouse Five
Woolf, Virginia, On Being Ill
X ?
Yoshimoto, Banana, Kitchen
Zafon, Carlos Ruiz, Shadow of the Wind