Containing over 500 entries, this historical reference work provides an A-Z of alien and non-human encounters. It details the events, encounters, personalities

From Area 51 to the Philadelphia Experiment, it's all in "The Encyclopedia of Alien Encounters". This highly engaging collection offers an authoritative and obj

An illustrated A-to-Z guide to all things alien. Over 400 entries from more than 100 contributors cover everything from the incidents and witnesses involved to

This work brings together events, encounters, personalities and theories to form a definitive reference work on mankind's encounters with aliens. Entries are cr

Here is the first A–Z encyclopedia to explore the convictions held by many in the modern day world that extraterrestrials, angels, fairy-folk, and other-dimen