2012
Among others /
Walton, Jo.

2011 (Part Two)
All clear /
Willis, Connie.

2011 (Part One)
Blackout /
Willis, Connie.

2010(tie)
The windup girl /
Bacigalupi, Paolo.

2010(tie)
The city & the city /
Miéville, China.

2009
The graveyard book /
Gaiman, Neil.

2008
The Yiddish policemen's union : a novel /
Chabon, Michael.

2007
Rainbows End.
Vinge, Vernor.

2006
Spin /
Wilson, Robert Charles, 1953-

2005
Jonathan Strange & Mr. Norrell /
Clarke, Susanna.

2004
The paladin of souls /
Bujold, Lois McMaster.

2003
Hominids /
Sawyer, Robert J.

2002
American gods : a novel /
Gaiman, Neil.

2001
Harry Potter and the goblet of fire /
Rowling, J. K.

2000
A deepness in the sky /
Vinge, Vernor.

1999
To say nothing of the dog, or, How we found the bishop's bird stump at last /
Willis, Connie.

1998
Forever peace /
Haldeman, Joe W.

1997
Blue Mars /
Robinson, Kim Stanley.

1996
The diamond age /
Stephenson, Neal.

1995
Mirror dance : a Vorkosigan adventure /
Bujold, Lois McMaster.

1994
Green mars /
Robinson, Kim Stanley.

1993
A fire upon the deep /
Vinge, Vernor.

1992
Cordelia's honor /
Bujold, Lois McMaster.

1991
The Vor game /
Bujold, Lois McMaster.

1990
Hyperion /
Simmons, Dan.

1989
Cyteen /
Cherryh, C. J.

1988
The uplift war /
Brin, David.

1987
Speaker for the dead /
Card, Orson Scott.

1986
Ender's game /
Card, Orson Scott.

1985
Neuromancer /
Gibson, William, 1948-

1984
Startide rising /
Brin, David.

1983
Foundation's edge /
Asimov, Isaac, 1920-1992.

1982
Downbelow station, 20th Anniversary Ed.
Cherryh, C. J.

1981
The snow queen /
Vinge, Joan D.

1980
The fountains of Paradise /
Clarke, Arthur C. 1917-2008.

1979
Dreamsnake /
McIntyre, Vonda N.

1978
Gateway /
Pohl, Frederik.

1977
Where late the sweet birds sang /
Wilhelm, Kate.

1976
The forever war /
Haldeman, Joe W.

1975
The dispossessed; an ambiguous Utopia
Le Guin, Ursula K., 1929-

1974
Rendezvous with Rama /
Clarke, Arthur C. 1917-2008.

1973
The gods themselves /
Asimov, Isaac, 1920-1992.

1972
To your scattered bodies go /
Farmer, Philip José.

1971
Ringworld /
Niven, Larry.

1970
The left hand of darkness /
Le Guin, Ursula K., 1929-

1969
Stand on Zanzibar /
Brunner, John, 1934-1995.

1968
Lord of light /
Zelazny, Roger.

1967
The moon is a harsh mistress /
Heinlein, Robert A. 1907-1988.

1966
Dune /
Herbert, Frank.

1965
The wanderer /
Leiber, Fritz, 1910-1992.

1964
Way station /
Simak, Clifford D., 1904-1988.

1963
The man in the high castle /
Dick, Philip K.

1962
A Stranger in a Stange Land
Heinlein, Robert A.

1961
A canticle for Leibowitz /
Miller, Walter M., 1923-1996.

1960
Starship troopers /
Heinlein, Robert A. 1907-1988.

1959
A case of conscience /
Blish, James.

1958
The big time /
Leiber, Fritz, 1910-1992.