Mmmmm...which ones shall I place here...mmmmm...OK, let me begin:
A great compilation of dark short stories: Borderlands (with cover artwork by Dave McKean)
And of course: The Lord of the Rings (J. R. R. Tolkien)
Totally like Lord of the Rings: The Sword of Shannara (by Terry Brooks)
Great german stuff: Die Leiden des jungen Werther (by Goethe)
Have a look into the future: Neuromancer (by William Gibson) Get it!
Vampires everywere: Bloodwar - Masquerade of the Red Death Trilogy (Vol. 1 by Robert
Weinberg)
Finally I can recommend all the books of the Ravenloft-series
