Literature Recommendations

1. Standard Works, in chronological order

Ruppelt, E. 1956: The Report on Unidentified Flying Objects, N.Y.: Doubleday

Aimé Michel, 1958: Flying Saucers and the Straight-Line Mystery, New York: Criterion Press

Lorenzen, C.E., 1962: The Great Flying Saucer Hoax, New York: The William Frederick Press

Hall, R., 1964: The UFO Evidence, Washington, D.C.: NICAP

Vallée, J., 1965: Anatomy of a Phenomenon, Chicago: Henry Regnery Press

Fuller, J.G., 1966: Incident at Exeter – The Story of Unidentified Flying Objects Over America Today, New York: Putnam's Sons

Vallée, Jacques & Janine, 1967: Challenge to Science: The UFO Enigma, Chicago, IL: Henry Regnery Press

David Saunders & Roger Harkins, 1968: UFOs? Yes! – Where the Condon Committee Went Wrong, New York: Signet Books

Jaques Vallée, 1969: Passport to Magonia – From Folklore to Flying Saucers, Chicago, IL: Henry Regnery Company

Condon, E. & D. Gillmor (Ed.), 1969: Scientific Study of Unidentified Flying Objects (Condon Report), N.Y.: Dutton

Carol & Jim Lorenzen, 1969: UFO – The Whole Story, New York: Signet Books

Hynek, J.A., 1972: The UFO Experience: A Scientific Inquiry, ??

McCampbell, J.M., 1973: UFOlogy – New Insights From Science and Common Sense, San Francisco, CA: Hollmann Publ. Comp.

Allen Hynek & Jacques Vallée, 1975: The Edge of Reality – A Progress Report on UFOs, Chicago, IL: Henry Regnery Press

Jacobs, D., 1975: The UFO Controversy in America, Bloomington: Indiana University

Hynek, J.A., 1977: The Hynek UFO Report, ??

Hendry, A., 1979: The UFO Handbook, Garden City, NY: Doubleday

Haines, R., 1980: Observing UFOs, Chicago, IL: Nelson-Hall

Gindilis, L.M., D.A. Menkow & I.G.Petrowskaja, 1980 (russ. Orig. 1978): Observations of Anomalous Amospheric Phenomena in the USSR: Statistical Analysis, CUFOS

Rutledge, H.D., 1981: Project Identification: The First Scientific Field Study of UFO Phenomena, Englewood Cliffs, NJ: Prentice-Hall, Inc.

Herbert J. Strentz, 1982: A Survey of Press Coverage of UFOs, 1947-1966, Scotia, NY: Arcturus Books

Paul R. Hill, 1995: Unconventional Flying Objects – A Scientific Analysis, Charlottesville, VA: Hampton Roads

Kevin D. Randle, 1995: The Randle Report: UFOs in the 90s, ??

Hynek, J.A., P.J. Imbrogno & B. Pratt, 1998: Night Siege: The Hudson Valley UFO Sightings, 2. Aufl., St. Paul, MN: Llewellyn Publications

Sturrock, P.A., 1999: The UFO Enigma – A New Review of the Physical Evidence, New York: Warner Books

Michael David Hall, 1999: UFOs – A Century of Sightings, Lakesville, Minnesota: Galde Press, Inc

Marrs, J., 2000: Alien Agenda – Investigating the Extraterrestrial Presence Among us, New York: Harper

Hall, R. 2001: The UFO Evidence – Vol.II: A Thirty-Year Report, Lanham, Maryland: Scarcrow

Weinstein, D.F., 2012: Aviation Safety and Unidentified Aerial Phenomena – A Preliminary Study of 600 Cases of UAPs, Reported by Military and Civilian Pilots, NARCAP International Air Safety Report IR-4, 2012, Paris

2. Encyclopedias & Symposium Proceedings

Jerome Clark, 1990: UFOs in the 1980s (UFO-Encyclopedia 1/3), wichtigste Sammlung, 233 pages

Jerome Clark, 1992: The Emergence of a Phenomenon: UFOs From the Beginning Through 1959 (UFO-Encyclopedia 2/3), wichtigste Sammlung, 433 pages

Jerome Clark, 1996: High Strangeness: UFOs From 1960 Through 1979 (UFO-Encyclopedia 3/3), wichtigste Sammlung, 775 pages

Jerome Clark, 1997: The UFO Book – Encyclopedia of the Extraterrestrial , UFO-Encyclopedia gekürzt, 705 pages

Margaret Sachs, 1980: The UFO Encyclopedia, 408 pages; N.Y.: Putnam

Ronald Story (Ed.), 1980: The Encyclopedia of UFOs, 440 pages; N.Y.: Doubleday

John Spencer, 1991: The UFO Encyclopedia, 434 pages; London: Headline Book Publishing PLC

Ronald Story, 2001: The Mammoth Encyclopedia of Extraterrestrial Encounters, 834 pages, N.Y.: New American Library

Alan Baker, 1999: The Encyclopedia of Alien Encounters, London: Virgin

MUFON UFO Symposium Proceedings, since 1971 annually, MUFON Seguin, TX

The Symposium on Unidentified Flying Objects, 1968 hearing before the U.S. House of Representatives.

UFOs – A Scientific Debate, 1972, Ed. T. Page & C. Sagan, Collected Papers at the AAAS Convention Symposium 1969; Ithaca, NY: Cornell University

Proceedings of the 1975 CUFOS Conference, 1976, CUFOS; Evanston, IL

Proceeding of the First International UFO Congress 1977, 1980, Ed. C. Fuller; N.Y.: Warner Books

The Spectrum of UFO Research, 1988; Ed. Mimi Hynek; collected papers 2nd CUFOS conference, 1981; Chicago, IL

UFO Phenomena – An International Annual Review Devoted to the Scientific Study of UFO Phenomena, 1978/79, Ed. R. Farabone, UPIAR, Vol.III, No.1, Bologna, Italien: Editecs Pub. House

International UPIAR Colloquium on Human Sciences and UFO Phenomena, 1983, R. Farabone (Ed.), UPIAR Proceedings, Bologna, Italien

Anomalous Experiences and Trauma, 1992, R, Laibow (Ed.), TREAT 2 Proceedings; Dobbs Ferry, NY

International Symposium on UFO Research,, 1992, Ed. M. Albertson & M. Shaw; International Association for New Science (IANS), Fort Collins, CO

When Cosmic Cultures Meet, An International Conference presented by the Human Potential Foundation, 27.-29.05.1995; Falls Curch, VA: Human Potential Foundation

Alien Discussions: Proceedings of the Abductio Study Conference held at MIT, Cambridge, MA, 1994, hrsg. von Pritchard, A und D., J. Mack, P. Kasey, C. Yapp

MUFON-CES-Reports, 1974 – 2009 (12 Berichte); Ed.: I.v.Ludwiger, Feldkirchen-Westerham: MUFON-CES

3.a. Learned Journals, scientific

Journal of Scientific Exploration, quarter annually since 1987; Society for Scientific Exploration, Lawrence, KS

Journal for UFOS Studies, CUFOS (irregularly)

GEPAN – Note Technique, vertrauliche Berichte, since 1979, Groupe d’Etudes des Phénomènes Aerospatiaux Non Identifiés (GEPAN), Centre National d’Etudes Spatiaux (CNES), Toulouse

Journal of UFO History – A Publication of theDonald E. Keyhoe Archives, Ed. R.H. Hall; since 2004 bimonthly; Washington D.C.

European Journal of UFO and Abduction Studies, since 2000; Ed.: C. Roberts; Publikation: Totton Researchers of Ufology Theory and History (TRUTH): Department of Psychology, Totton College, Water Lane, Totton, Southampton, S040 3ZX, United Kingdom,

3.b. Learned Journals, non scientific

Flying Saucer Review (FSR), since 1955 quarter annually; FSR Publications Ltd., P.O. Box 162, High Wycombe, Bucks, HP13 5DZ, England, website:, Email:, over 5300 pages until 1995.

E. Steward: 1995:FSR Index 1955-1994, 613 pages

MUFON UFO Journal, Mutual UFO Network, since 1967 monthly, MUFON UFO Journal, P.O. Box: 369, Morrison, CO 80465-0369, USA; website:, Email:, 629 pages until 1996.

E. Steward, 1996: MUFON UFO Journal & Skylook Index, 1967 – 1996

Just CAUSE, Publikation der Organisation Citizen Against UFO Secrecy (CAUS), since 1984; CAUS, P.O. Box 218, Coventry, Ct. 06238, USA

The Australasian Ufologist, Australia & Asia, quarter annually; The Australasian Ufologist, P.O. Box: 805, Springwood QLD 4127, Australia

Lumières dans la Nuit (LDNL), France; since 1970 bimonthly; LDNL M. R. Veillith, „Les Pins“, 43-LE Chambon-sur-Lignon, C.C.P.: 27-24-26 Lyon

Inforespace - Ufologie Phénomènes Spatiaux, Publikation der SOBEPS, Belgien: Société Belge d’Etude des Phénomènes Spatiaux, asbl Avenue Paul Janson, 74, B-1070 Bruxelles; quarterl annually

The Journal of Abduction-Encounter Research (JAR), Webb Publications; since 2007 quarter annually

3.c. Learned Journals, no more in publication

International UFO Reporter (IUR), CUFOS Allen Hynek Center for UFO Studies, 2457 West Peterson Avenue, Chicago, Illinois 60659, USA; quarter annually 1976 – 2011, website:, email:

The A.P.R.O. Bulletin, 1952 – 1979

NICAP UFO Investigator, 1957 – 1980

Canadian UFO Report, 1969 – 1981

4. Special Collections, in chronological order

Richard Hall, 1960: Electro-magnetic Effects Associated With UFOs, NICAP

USAF: Project Bluebook, 93 microfilm reels with 13 000 reports of sightings 1947 – 1969; National Archives Washington D.C.

Thomas M. Olsen, 1966: The Reference for Outstanding UFO Sighting Reports, Riderwood, Maryland: UFO Information Retrieval Center, Inc.

Charles Bowen (Ed.), 1966: The Humanoids, FSR Special Report; London: Futura Publ.

Ted Bloecher, 1967: Report of the UFO Wave of 1947, ??

Ted Phillips, 1975: Physical Traces Associated with UFO Sightings, CUFOS

David Webb, 1976: 1973 – Year of the Humanoids, CUFOS

Vincents-Juan Ballester Olmos, 1976: A Catalogus of 200 Type-I UFO Events in Spain and Portugal, CUFOS

Mark Moravec, 1980: The UFO-Anthropoid Catalogue, Australian CUFOS

Loren Gross, 1980: UFOs: A History, Bände 1-8: 1947-1951; Fremont, CA: Gross

Mark Rodeghier, 1981: UFO Reports Involving Vehicle Interference, CUFOS

Adolf Schneider, 1983: 1319 Fälle von physikalischen Wechselwirkungen von UFOs, (electromagnetic & gravitational effects), MUFON-CES

George D. Fawcett, 1986: Human Reactions to UFOs Worldwide (1940-1983), Lincolntown, North California: Fawcett

Thomas E. Bullard, 1987: Abductions: The Measure of a Mystery, (2 volumes), Mt. Rainier: FUFOR

Richard Hall, 1988: Uninvited Guests – A Documented History of UFO Sightings, Alien Encounters & Coverups, Santa Fe, NM:Aurora Press

David Saunders & Donald Johnson, 1992: UFOCAT, computer catalog about 110000 UFO cases, CUFOS

Richard F. Haines, 1994: Project Delta: A Study of Multiple UFO, Los Altos, CA: L.D.A. Press

Walters, E & G., 1994: UFO Abductions in Gulf Breeze, New York: Avon Books

Allan J. Manak, 1994: Ice Falls and Angel Hair – A Chronological Catalog of Ice Falls and Angel Hair Anomalies, Cleveland, Ohio: U.A.P.A.

Ferrughelli, P., 1997: NSRC 1997 Yearbook: Decade of UFO Data 1986-1995 – Data on 2558 UFO Sightings From 1986-95, Wayne, NJ: NSRC

Illobrand v. Ludwiger, 1998: Best UFO Cases – Europe, Las Vegas: NIDS

Greenwood, J., 2002: Beyond UFO Secrecy: The Story of the Black Vault’s Search for Truth, Northridge, CA: The Black Vault

Jim Doerster, 2005: A Study of UFO Experiences and Anomalies as Reported by Forest Fire Lookouts and Forest Workers, Aukland, OR: Dr. Jim Doerter

Michael D. Swords, 2005: Grass Roots UFOs – CaseReports from the Timmerman Files, Lima, Ohio: FUFOR

Colm A. Kelleher & George Knapp, 2005: Hunt for the Skinwalker – Science Confronts the Unexplained at a Remote Ranch in Utah, New York: Paraview Pocket Books

Donald A. Johnson, 2007: UFOCAT 2007 CD-ROM, CUFOS, Chicago

David Marler, 2013: Triangular UFOs – An Estimate of the Situation, Rochester, N.Y.: Richard Dolan Press

Ardy Sixkiller Clarke, 2013: Encounters with Star People – Untold Stories of American Indians, San Antonio, TY: Anomalist Books

Ardy Sixkiller Clarke, 2015: Sky People – Untold Stories of Alien Encounters in Mesoamerica, Pompton Plains, NJ: Career Press

5. Classical Case Studies about Close Encounters with UFOs, in chronological order

Arthur Shuttlewood, 1967: The Warminster Mystery, London: Tandem

Robert Emenegger, 1974: UFO’s Past Present & Future, New York: Ballentine Books

Jennie Zeidman, 1979: A Helicopter-UFO Encounter Over Ohio, CUFOS

Bill Startup & Neil Illingworth, 1980: The Kaikoura UFOs, Sydney: Hodder & Stoughton

Richard F. Haines, 1987: Melbourne Episode – Case Study of a Missing Pilot (Valentich Case), Los Altos, CA: L.D.A. Press

Jacques Vallée, 1988: Dimensions, ??

Richard F. Haines, 1990: Advanced Aerial Devices Reported During the Korean War, Los Altos, CA: L.D.A. Press

Kevin Randle & Don Schmitt, 1991: UFO Crash at Roswell, New York: Avon

Ellen Crystall. 1991: Silent Invasion – The Shocking Discoveries of a UFO Researcher, New York: Paragon House

Walters, E & B. Maccabee, 1997: UFOs are Real: Here's the Proof, New York: Avon Books

J. Allen Hynek, Philop J. Imbrogno & Bob Pratt, 1998: Night Siege – The Hudson Valley UFO Sightings, St. Paul, MN: Llewellyn Publications

John F. Schuessler, 1998: The Cash-Landrum UFO Incident: Three Texans Are Injured During an Encounter With a UFO and Military Helicopters, La Porte TX: Geo Graphics Printing Co.

Roger K. Leir, 1998: The Aliens and the Scalpel – Scientific Proof of Extraterrestrial Implants in Humans, Columbus, NC: Granite Publishing, LLC

Karl K. Korff, 2000: The Roswell UFO Crash – What They Don’t Want You to Know, New York: Dell Books

Georgina Bruni, 2000: You Can’t Tell the People – the Definite Account of the Rendlesham Forest UFO Mystery, London: Sidgwick & Jackson

Bruce Maccabee, 2000: McMinnville! – Scientific Analysis of the Most Famous UFO Photographs Ever Taken, Mount Rainer, MD: FUFOR

Lynne D. Kitel, 2004: The Phoenix Lights, Charlottesville, VA: Hampton Roads

Joan Woodward, 2005: Animal Reactions to UFOs: A Preliminary Investigation From the Animals’ Perspective, MUFON

Bill Chalker, 2005: Hair of the Alien – DNA and Other Forensic Evidence of Alien Abduction, New York: Pockets Books

6. Classical Case Studies about Encounters with UFO Occupants, in chronological order

Norman Cruttwell, 1960: Flying Saucers Over Papua, Papua: Cruttwell

John G. Fuller, 1966: The Interrupted Journey, ??

Coral & Jim Lorenzen, 1967: Flying Saucer Occupants, New York: Signet Books

John A. Keel, 1970: UFOs – Operation Trojan Horse: An Exhaustive Study of UFOs – Revealing their Source and the Forces that Control them, New York: Putnam's Sons

Ray Stanford, 1976: Socorro ‘Saucer’ in a Pentagon Pantray, Austin, TX: Blueapple Books

Coral & Jim Lorenzen, 1976: Encounters with UFO Occupants, New York: Berkley Publishing Corporation

Isabel Davis & Ted Bloecher, 1978: Close Encounter at Kelly and Others of 1955, CUFOS

Bill Barry, 1978: Ultimate Encounter – The True Story of a UFO Kidnapping (Travis Walton-Case), Glasgow, Great Britain: A Corgi Book

Charles Hickson & William Mendez, 1983: UFO Contact at Pascagoula, Tucson, AZ: Stevens

Ann Druffel & D. Scott Rogo, 1980: The Tujunga Canyon Contacts, Englewood Cliffs, NJ: Prentice-Hall, Inc.

Budd Hopkins, 1991: Eindringlinge, Hamburg: Kellner

Irene Grandi, 1992: UFOs and Abductions in Brazil, Madison, Wisconsin: Horus House Press. Inc.

David M. Jacobs, 1992: Secret Life: Firsthand Accounts of UFO Abductions, ??

Raymond Fowler (Ed.), 1990: ?Die Allagash Entführungen?, ??

Walter Webb, 1994: The Buff Ledge Incident, CUFOS

Debby Jordan & Kathy Mitchell, 1994: Abducted! The Story of the Intruders Continues, ??

John E. Mack, 1995: Abduction: Human Encounters with Aliens, ??

Budd Hopkins, 1996: Witnessed: The Brooklyn Bridge Abductions, ??

Kelly Cahill, 1996: Encounter, Sydney: Harper Collins Publishers

Bob Pratt, 1996: UFO Danger Zone – Terror and Death in Brazil – Where Next?, Madison, Wisconsin: Horus House Press, Inc.

Philip J. Imbrogno & Marianne Horrigan, 1997: Contact of the 5th Kind, St. Paul Minnesota: Llewellyn Publications

David M. Jacobs, 1998: The Threat: What the Aliens Really Want ... And How they Plan to Get it, New York: Simon & Schuster

Preston Dennett, 1999: UFOs Over Topanga Canyon, St. Paul, Minnesota: Llewellyn Publication

Richard F. Haines, 1999: CE-5 Close Encounters of the Fifth Kind, Naperville, IL: Sourcebooks, Inc.

John Vasques & Bruce S. Holms, 2000: Incident at Fort Benning, Santa Barbara, CA: Timeless Voyager Press

David M. Jacobs (Ed.), 2000: UFOs and Abductions – Challenging the Borders of Knowledge, Lawrence, KS: University Press of Kansas

Preston Dennet, 2001: Extraterrestrial Visitations – True Accounts of Contact, St. Paul, Minnestoa: Llewellyn Publications

Sandy Nichols, 2001: Different Child, Merrimack, NH:Write to Print

Budd Hopkins & C. Rainey, 2003: Sight Unseen – Science, UFO Invisibility, and Transgenetic Bings, New York: Atria Books

Roger K. Leir, 2005: UFO Crash in Brazil – A Genuine UFO Crash With Surviving ETs, San Diego, CA: The Book Tree

Michael MJ. Evans & Preston Dennett, 2007: The Colorado Island UFO-Incident, Lakeville, MN: Galde Press

Philip J. Imbrogno, 2010: Ultraterrestrial Contact – A Paranormal Investigator's Explorations Into the Hidden Abduction Epidemic, Woodbury, Minnesota: Llewellyn Publications

Kathleen Marden & Dennis Stoner, 2012: The Alien Abduction Files The Most Startling Cases of Human-Alien Contact Ever Reported, Pompton Plains, NJ: The Career Press

Don Donderi, 2013: UFOs, ETs, and Alien Abductions, Charlottesville, VA: Hampton Roads Publishing Company, Inc.

Bret Oldham, 2013: Children of the Greys, Murfreesboro, TN: House of Halo

7. Reports about the Treatment of UFOs by the U.S. Government

Leon Davidson, 1956: Flying Saucers: An Analysis of the Air Force Blue Book Special Report No. 14, White Plains, NY: Davidson

NICAP, 1968: USAF Project Grudge and Blue Book Reports 1-12, Washington, C.C.: NICAP

Brad Steiger, 1976: Project Blue Book: The Top Secret UFO Findings Revealed!, New York: Ballantine Books

Peter A. Gersten, 1981: What the Government Would Know About UFOs if They Read Their Own Documents, MUFON

William Moore (Ed.), 1983: The Mystery of the Green Fireballs, Pescott, AR: Moore

Berry Greenwood & Lawrence Fawcett, 1984: Clear Intent, Englewood Cliffs, NJ: Prentice Hall

William Moore (Ed.), 1985: U.S. Department of State Documents on the Scandinavian Ghost Rocket Phenomenon of 1946, Burbank, CA: Moore

Clifford E. Stone, 1991: UFOs: Let the Evidence Speak for Itself, Port St. Lucie, FL: Arcturus Books

Grant Cameron & T. Scott Crain, 1991: UFOs, MJ-12 and the Government – A Report on Government Involvement in UFO Crash Retrievals, MUFON

Clifford E. Stone, 1993: Operation Blue Fly Research Project – Report to Congress, Port St. Lucie, FL: Arcturus Books

Kevin D. Randle, 1997: Project Blue Book Exposed, New York: Marlowe & Company

Richard H. Hall (Ed.), 1998: Project “SIGN”- Air Force Documents 1948-1949, FUOFR (=Fund for UFO Research)

Jan Aldrich, 2000: The Ghost Rocket File: Documents and News Articles Concerning Anomalous Objects Seen Over Scandinavia in 1946, FUFOR

Larry W. Bryant, 2001: UFO Politics at the White House, Arlington, VA: The Invisible College Press

Robert Salas & James Klotz, 2004: Faded Giant – The 1967 Missile/UFO Incidents, Port St. Lucie, FL: Arcturus Books

Larry W. Bryant, 2005: UFO Politics at the White House – Citizens Rally ‘Round Jimmy Carter’s Promise, Lakeville Minnesota: Galde Press, Inc.

8. Governmental Documents

U.S. Air Force Material Command, 1949: Project ‘SIGN’, Dayton, Ohio: Wright-Patterson AFB

U.S. National Military Establishment, 1949: Project ‘SAUCER’, Memorandum to Press 27. April 1949; Chicago, IL: CUFOS

U.S. Air Force Material Command, 1949: Project “GRUDGE” Final Report, Dayton, Olhio: Wright-Patterson AFB

U.S. Air Force Material Command, 1951: Project “TWINKLE” Final Report, Dayton, Olhio: Wright-Patterson AFB

U.S. Department of Defense, 1952: Minutes of Press Conference Held by Major General John A. Samford, Director of Intelligence, USAF, 29. Juli 1952 (in following to the Washington D.C. sightings); DOD

U.S. Central Intelligence Agency, 1953: Report of Meeting of Scientific Advisory Panel On UFOs Convened by Office of Scientific Intelligence CIA, (Robertson Panel); Chicago, IL: CUFOS

U.S. Congress (House Committee on Science and Astronautics), 1961: Proposed Studies on the Implications of Peaceful Space Activities From Human Affairs, (NASA Brookings Instruction Report); House Report No. 242, 87th Congress, 1st Session, Vol. 2 serial 12338

U.S. Congress (House Committee on Armed Services), 1966: Unidentified Flying Objects, Hearings, 89th Congress, 2nd Session, 15. April 1966; Washington, D.C.:Government Printing Office

U.S. Air Force Material Command, 1966: Special Report (O’Brien Committee); Washington, D.C.; USAF

U.S. Congress (House Committee on Science and Astronautics), 1968: Symposium on UFOs, Hearings, 90th Congress, 2nd Session; Washington, D.C., Government Printing Office