1984 by Orwell, George
Fahrenheit 451 by Bradbury, Ray
Dune by Herbert, Frank
Frankenstein by Shelly, Mary
I, Robot by Asimov, Isaac
Ender's Game by Card, Orson Scott
Foundation by Asimov, Isaac
The War of the Worlds by Wells, H. G.
2001: A Space Odyssey by Clarke, Arthur C.
Invisible Man by Wells, H. G.
The Handmaid's Tale by Atwood, Margaret
The Strange Case of Dr. Jekyll and Mr. Hyde by Stevenson, Robert Louis
A Clockwork Orange by Burgess, Anthony
Stranger in a Strange Land by Heinlein, Robert A.
The Martian Chronicles by Bradbury, Ray
Childhood's End by Clarke, Arthur C.
Flowers for Algernon by Keyes, Daniel
The Caves of Steel by Asimov, Isaac
Something Wicked This Way Comes by Bradbury, Ray
Jurassic Park by Crichton, Michael
The Nine Billion Names of God by Clarke, Arthur C.
A Canticle for Leibowitz by Miller, Walter M.
Nightfall by Asimov, Isaac
Starship Troopers by Heinlein, Robert A.
The Moon is a Harsh Mistress by Heinlein, Robert A.
The Mote in God's Eye by Niven, Larry and Pournelle, Jerry
Red Mars by Robinson, Kim Stanley
Ringworld by Niven, Larry
The Andromeda Strain by Crichton, Michael
Cyteen by Cherryh, C. J.
I Sing the Body Electric by Bradbury, Ray
The Day of the Triffids by Wyndham, John
Contact by Sagan, Carl
On the Beach by Shute, Nevil
The Illustrated Man by Bradbury, Ray
The Lathe of Heaven by Le Guin, Ursula K.
The Ship Who Sang by McCaffrey, Anne
The Stainless Steel Rat by Harrison, Harry
The Stars My Destination by Bester, Alfie
Barrayar by Bujold, Lois McMaster
The Forever War by Haldeman, Joe
The Giver by Lowry, Lois
Foreigner by Cherryh, C. J.
Rendezvous with Rama by Clarke, Arthur C.
The Dispossessed by Le Guin, Ursula K.
The Gods Themselves by Asimov, Isaac
The Time Traveler's Wife by Niffenegger, Audrey
Children of Men by James, P. D.
Dangerous Visions by Ellison, Harlon
Downbelow Station by Cherryh, C. J.
Old Man's War by Scalzi, John
Crystal Singer by McCaffrey, Anne
Doomsday Book by Willis, Connie
Lucifer's Hammer by Niven, Larry and Pournelle, Jerry
The City and the Stars by Clarke, Arthur C.
The Demolished Man by Bester, Alfie
Blood Music by Bear, Greg
Footfall by Niven, Larry and Pournelle, Jerry
Solaris by Lem, Stanislaw
Songs of Distant Earth by Clarke, Arthur C.
Stand on Zanzibar by Brunner, John
Stars in my Pocket, Like Grains of Sand by Delany, Samuel
The Island of Doctor Moreau by Wells, H. G.
The Man in the High Castle by Dick, Philip K.
The Midwich Cuckoos by Wyndham, John
Time Enough for Love by Heinlein, Robert A.
To Ride Pegasus by McCaffrey, Anne
To Say Nothing of the Dog by Willis, Connie
To Your Scattered Bodies Go by Farmer, Philip Jose
Where Late the Sweet Birds Sang by Wilhelm, Kate
A Princess of Mars by Burroughs, Edgar Rice
Grass by Tepper, Sherri S.
Invasion of the Body Snatchers by Finney, Jack
Little Brother by Doctorow, Cory
Sphere by Crichton, Michael
Tau Zero by Anderson, Poul
The Best of Cordwainer Smith by Smith, Cordwainer
A Fire Upon the Deep by Vinge, Vernor
Alas, Babylon by Frank, Pat
At the Mountains of Madness by Lovecraft, H. P.
Babel-17 by Delany, Samuel
Chrysalids by Wyndham, John
City by Simak, Clifford
Double Star by Heinlein, Robert A.
Earth by Brin, David
Gateway by Pohl, Frederik
Islands in the Sky by Clarke, Arthur C.
Kindred by Butler, Octavia
More Than Human by Sturgeon, Theodore
On Basilisk Station by Weber, David
The Coelura by McCaffrey, Anne
The Pride of Chanur by Cherryh, C. J.
The Speed of Dark by Moon, Elizabeth
The Ugly Little Boy by Asimov, Isaac and Silverberg, Robert
Uglies by Westerfeld, Scott
Now let me cross out the ones I have read...
... hm, I suspect I've read more than that, particularly Asimov and Heinlein, but as a teenager and in German... am very interested to read and re-read these!