Here is the list of all the books I want to read or re-read (because, for most of them, I read those so long ago that I don't remember them at all). I'll try to make a dent in it, but I'm easily distracted by new authors I like or by a book that caught my eye in the library.
Series I want to finish:
The Dark Tower by Stephen King : books 4, 5, 6 and 7
Age of the Five trilogy by Trudi Canavan : book 3
The Dragon Jousters by Mercedes Lackey : book 4
Morgana and Arthur by Michel Rio
The Story of General Dann and Mara's Daughter, Griot and the Snow Dog by Doris Lessing
The Temeraire series by Naomi Novik
Peter Grant series (books 2 to 4) by Ben Aaronovitch
Books I want to re-read:
Narcisse and Goldmund by Herman Hesse
Salem by Stephen King
Fahrenheit 451 by Ray Bradbury
Faust by Goethe
The Lord of the Flies by William Golding
1984 by George Orwell
The Lord of the Rings series by Tolkien
The Harry Potter series by Rowling
Books I want to read:
Beatrix by Balzac
Dracula by Bram Stocker
Wastelands : Stories of the Apocalypse (anthology)
Logorrhea : Good Words Make Good Stories (anthology)
Pauline by Duma
The Count of Monte-Cristo by Dumas
A Clegyman's Daughter by Orwell
Faustus by Marlowe
Mon Faust by Paul Valéry
Gil Blas by Lesage
The Nonexistent Knight by Italo Calvino
Invisible Cities by Italo Calvino
The Ladies of Grace a Dieu by Susanna Clarke
The Golden Notebook : A Novel by Doris Lessing
The Cleft by Doris Lessing
Oryx and Clarke by Margaret Atwood
The Year of the Flood by Margaret Atwood
The Blind Assassin by Margaret Atwood
Close Range : Wyoming Stories by Annie Proulx
The Tenant of Wildfell Hall by Anne Brönte
Pfitz by Andrew Crumey
White Cat by Holly Black
A Monster Calls by Patrick Ness
Watership Down by Richard Adams
The Library of Shadows by Mikkel Birkegaard
Someplace to be Flying by Charles de Lint
Good Omens by Terry Pratchett and Neil Gaiman
American Gods by Neil Gaiman
The Orphan's Tales : In The Night Garden by Catherynne Valente
The Mist of Avallon by Marion Zimmer Bradley
Labyrinths by Borges
Ender's Game by Orson Scott Card
Havemercy by Jaida Jones and Danielle Bennett
Slaughterhouse Five by Kurt Vonnegut
Breakfast of Champions by Kurt Vonnegut
Room by Emma Donoghue
The Tempest by Shakespeare
Cider With Rosie by Laurie Lee
Suite française by Irène Némirovsky
To Kill A Mockingbird by Harper Lee
The Road by Cormac McCarthy
The Giver by Lois Lowry
The Philosopher's Apprentice by James Morrow
Nip the Buds, Shoot the Kids by Kenzaburo Oe
Hunger by Knut Hamsun
The Tales of Beedle the Bard by J. K. Rowling
Fragile Things by Neil Gaiman
Nine Stories by Salinger
Eight Cousins by Louisa Alcott
The Curse of Chalion by Lois McMaster Bujold
Iphigénie de Racine
Dreamericana by Fabrice Colin
The Pigeon by Patrick Süskind
The Robber Bride by Margaret Atwood
Far North by Marcel Theroux
Parable of the Sower by Octavia E. Butler
Peeps by Scott Westerfeld
L'élue et Messager par Lois Lowry
Among Others by Jo Walton
Where Late the Sweet Birds Sang by Kate Wilhelm
The Stand by Stepehn King
Fiskadoro by Denis Johnson
On the Beach by Nevil Shute
A Canticle for Leibowitz by Walter M. Miller, Jr.
The Gates by John Connolly
Gone-Away World by Nick Harkaway
Day of the Triffids by John Wyndham
The Scarlet Plague by Jack London
The Absolute at Large and War With the Newts by Karel Capek
Les Misérables de Victor Hugo
Turn of the screw by Henry James
Kafka on the Shore by Murakami
Reading Lolita in Teheran by Azar Nafisi
Walden by Thoreau
A Gift Upon the Shore by Wren
The Midnight Disease by Flaherty
The Rebel Angels by Robertson Davies
This list is by no means complete, I'll expand it when I think of more books I want to read.