File:A Million Open Doors (cover art).jpg

Summary
Cover of novel A Million Open Doors by John Barnes.

Fair use
Although this image is subject to copyright, I believe it qualifies for fair use because:
 * it is the primary visual identification of the book
 * it cannot be used to illegal copies of the book
 * it does not affect the owner's rights or ability to sell the book
 * it is of lower resolution than the original
 * it cannot be replaced with a free image of equivalent value
 * Source: http://www.isfdb.org/cgi-bin/pl.cgi?897