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Non-Fiction Books in Order
Below you'll find the complete list of Non-Fiction books in publication order. This is generally the recommended reading order for the series.
Reading order verified: March 2026
Quick Answer
What order should I read the Non-Fiction series? Start with "UFO's in Space: Anatomy of a Phenomenon" (1965) and follow publication order through all 19 books.
The complete Non-Fiction reading order is listed below in publication sequence.
Publication Order
UFO's in Space: Anatomy of a Phenomenon
1965
Challenge to Science: The UFO Enigma
1966
Passport to Magonia
1969
The Invisible College
1975
The Edge of Reality: A Progress Report on Unidentified Flying Objects (With: J. Allen Hynek)
1975
Unidentified Flying Objects
1977
Messengers of Deception
1979
Computer Message Systems
1984
Dimensions
1988
UFO Chronicles of the Soviet Union
1992
The Network Revolution
1993
The Four Elements of Financial Alchemy
2001
The Heart of the Internet
2003
Wonders in the Sky (With: Chris Aubeck)
2010
Trinity: The Best-Kept Secret (With: Paola Leopizzi Harris)
2021
Forbidden Science
1993
Forbidden Science 2
2008
Forbidden Science 3
2017
Forbidden Science 4
2019
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