Existence Ranks On The Following Lists:
First Contact Science Fiction Books(Ranked 26 out of 45)
Science Fiction that details the initial meeting between humans and an alien species. The meeting can be benign or hostile.
Alien Conspiracy Science Fiction Books(Ranked 13 out of 15)
Science Fiction about the existence of alien life and any sort of interaction with extraterrestrials has been covered up.
How Would You Rate Existence ? (leave blank if you just want to comment on the book and not review it):