
J. Allen Hynek books in order
American astronomer
- Lived
- 1910–1986
- Country
- United States
- Books
- 8
J. Allen Hynek published 1 non-fiction book and 7 other books, beginning with The Ufo Experience (1972).
Updated September 2026
Where to start with J. Allen Hynek

Start here
The Ufo Experience
J. Allen Hynek's most-read book.
Non-fiction in order

The Hynek Ufo Report (1977)
Other books in order

Astrophysics (1951)

Challenge of the Universe (1962)

The Ufo Experience (1972)

The Edge of Reality (1975)

The Andreasson Affair (1979)

Night Siege (1987)

What You Should Know About Ufo's (1988)
About J. Allen Hynek
Josef Allen Hynek was an American astronomer, professor, and ufologist. He is perhaps best remembered for his UFO research. Hynek acted as scientific advisor to UFO studies undertaken by the U.S. Air Force under three projects: Project Sign (1947–1949), Project Grudge (1949–1951) and Project Blue Book (1952–1969). In later years, he conducted his own independent UFO research, developing the "Close Encounter" classification system. He was among the first people to conduct scientific analysis of reports and especially of trace evidence purportedly left by UFOs.
Biography from Wikipedia, CC BY-SA 4.0. Photo via Wikimedia Commons.
J. Allen Hynek FAQ
- How many books has J. Allen Hynek written?
- J. Allen Hynek published 1 non-fiction book and 7 other books that we list, as of September 2026.
- What order should I read J. Allen Hynek's books in?
- Publication order is a safe choice; the full list is above. Most readers start with The Ufo Experience.
- What is J. Allen Hynek's last book?
- The Hynek Ufo Report (1977).
- What is J. Allen Hynek's most famous book?
- The Ufo Experience (1972) is J. Allen Hynek's most widely read book.
Sources: book lists and dates from Wikidata and Open Library, ratings from Open Library readers. Last updated September 2026.