By Brian Aldiss 

By Walter M. Miller Jr 

By Robert Silverberg 

By Robert Silverberg 

By Jack Vance 

By Paul McAuley 

By Cecelia Holland 

By Mary Shelley 

By Brian Aldiss 

By T. J. Bass 

By Christopher Priest 

By Frederik Pohl 

By Gwyneth Jones 

By Joseph O'Neill 

By Gwyneth Jones 

By J.G. Ballard 

By Douglas Adams 

By Bernard Wolfe 

By Frederik Pohl 

By Hal Clement 

By Theodore Sturgeon 

By Jack Vance 

By Michael Bishop 

By Olaf Stapledon