The invisible college: What a group of scientists has discovered about UFO influences on the human race Hardcover – January 1, 1975 by Jacques Vallee
 
Here at last is a sensible book about Unidentified Flying Objects that neither sensationalizes the subject nor dismisses the whole idea as nonsense. This book makes a persuasive case that UFOs are real, all right, but they represent a different order of reality entirely- a "psychic reality" -for which the best historical precedent is the traditional religious revelation.
 
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