Roswell: The Ultimate Cold Case; Eyewitness Testimony and Evidence of Contact and the Cover-Up Donald R. Schmitt4.1
Ancient Alien Question, 10th Anniversary Edition: An Inquiry Into the Existence, Evidence, and Influence of Ancient Visitors Philip Coppens3.8
Shards of Earth: First in an extraordinary trilogy, from the winner of the Arthur C. Clarke Award Adrian Tchaikovsky4.2
Area 51 - Black Jets: A History of the Aircraft Developed at Groom Lake, America's Secret Aviation Base Bill Yenne4.5
Space in 30 Seconds: 30 Super-Stellar Subjects For Cosmic Kids Explained in Half a Minute Clive Gifford
The Last Book On The Left: Stories of Murder and Mayhem from History's Most Notorious Serial Killers Marcus Parks4.2