Flatland
Edwin A. Abbott
Tangents
Greg Bear
In the Country of the Blind
Michael F. Flynn
The Blind Geometer
Kim Stanley Robinson
Cosmos
Carl Sagan
Last Chance To See
Douglas Adams & Mark Carwardine
Pale Blue Dot: A Vision of the Human Future in Space
The Demon Haunted World: Science as a Candle in the Dark
Glory
Greg Egan