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- John Carter, Robert Anton Wilson, Jack Whiteside Parsons, Aleister Crowley, Phyllis Seckler, Frank J. Malina – Sex and Rockets: The Occult World of Jack Parsons (1999)
- Stephanie Caruana – A Skeleton Key to the Gemstone File: Summary of Bruce Roberts’ Gemstone File Letters (2015)
- Colin Challen – Price of Power: The Secret Funding of the Tory Party (1998)
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- David Coady – Conspiracy Theories: The Philosophical Debate (2006)
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- Robert L.D. Cooper – Cracking the Freemasons Code: The Truth About Solomon’s Key and the Brotherhood (2006)
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- Jodi Dean – Publicity’s Secret (2002)
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- G. William Domhoff – The Bohemian Grove and Other Retreats (1974)
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- Joan D’Arc – Paranoid Women Collect Their Thoughts (2015)
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- F. William Engdahl – Myths, Lies and Oil Wars (2012)
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- Robert Eringer – The Global Manipulators (2011)
- Mark Fenster – Conspiracy Theories: Secrecy and Power in American Culture (1999)
- Mark Fenster – The Transparency Fix: Secrets, Leaks, and Uncontrollable Government Information (2017)
- Jean-Pierre Filiu – From Deep State to Islamic State: The Arab Counter-Revolution and Its Jihadi Legacy (2015)
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- Richard M. Gilman – Behind World Revolution: The Strange Career of Nesta H. Webster: 001 (1982)
- Joscelyn Godwin – Arktos: The Polar Myth in Science, Symbolism & Nazi Survival (1992)
- Ben Goldacre – Bad Pharma: How Drug Companies Mislead Doctors and Harm Patients (2012)
- Robert Alan Goldberg – Enemies Within: The Culture of Conspiracy in Modern America (2001)
- Paul Goodman – Towards a Christian Republic: Antimasonry & the Great Transition in New England 1826-36 (1988)
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- Matthew Gray – Conspiracy Theories in the Arab World: Sources and Politics (2010)
- John Michael Greer – Inside a Magical Lodge: Group Ritual in the Western Tradition (1951)
- Doğan Gürpınar – Conspiracy Theories in Turkey: Conspiracy Nation (2019)
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- Edward S. Herman, Noam Chomsky – Manufacturing Consent: The Political Economy of the Mass Media (1988)
- Al Hidell – The Complete Conspiracy Reader: From the Deaths of JFK and John Lennon to Government-Sponsored Alien Coverups (2003)
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- Richard Hofstadter – The Paranoid Style in American Politics and Other Essays (1964)
- Michael Howard – The Occult Conspiracy: Secret Societies – Their Influence and Power in World History (1989)
- Todor Hristov – Impossible Knowledge: Conspiracy Theories, Power, and Truth (2019)
- Margaret C. Jacob – Living the Enlightenment: Freemasonry and Politics in Eighteenth-Century Europe (1991)
- Emma A. Jane, Chris Fleming – Modern Conspiracy: The Importance of Being Paranoid (2014)
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- Bertrand De Jouvenel – On Power: The Natural History of Its Growth (1945)
- Konstandinos Kalimtgis – Dope, Inc.: Britain’s Opium War Against The U.S. (1978)
- David Keenan – England’s Hidden Reverse: A Secret History of the Esoteric Underground (2002)
- Dexter M. Keezer – A Unique Contribution to International Relations : The Story of Wilton Park (1973)
- Jim Keith – Mind Control, World Control: The Encyclopedia of Mind Control (1998)
- Jim Keith – Secret and Suppressed: Banned Ideas and Hidden History (1993)
- Stephen Kinzer – Overthrow: America’s Century of Regime Change from Hawaii to Iraq (2006)
- Stephen Kinzer – Poisoner in Chief: Sidney Gottlieb and the CIA Search for Mind Control (2019)
- Peter Knight – Conspiracy Culture: From the Kennedy Assassination to The X-Files (2000)
- Peter Knight – Conspiracy Nation: The Politics of Paranoia in Postwar America (2002)
- Peter Knight – Conspiracy Theories in American History [2 Volumes]: An Encyclopedia (2003)
- Jeffrey J. Kripal – Esalen: America and the Religion of No Religion (2007)
- Erica Lagalisse, Barbara Ehrenreich – Occult Features of Anarchism: With Attention to the Conspiracy of Kings and the Conspiracy of the Peoples (2019)
- Martin A. Lee – Acid Dreams: The Complete Social History of LSD: The CIA, the Sixties & Beyond (1984)
- Stuart W. Leslie – The Cold War and American Science: The Military-Industrial-Academic Complex at Mit and Stanford (1993)
- Peter Levenda – Sinister Forces—The Manson Secret: A Grimoire of American Political Witchcraft (2006)
- Robert S. Levine – Conspiracy and Romance: Studies in Brockden Brown, Cooper, Hawthorne, and Melville (1989)
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- Mari-Liis Madisson, Andreas Ventsel – Strategic Conspiracy Narratives: A Semiotic Approach (2020)
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- Timothy Melley – The Covert Sphere (2012)
- Anna Merlan – Republic of Lies: American Conspiracy Theorists and Their Surprising Rise to Power (2019)
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- George Monbiot – Captive State: The Corporate Takeover of Britain (2000)
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- Patrick O’Donnell – Latent Destinies: Cultural Paranoia and Contemporary U.S. Narrative (2000)
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- Robin Ramsay – Conspiracy Theories (2000)
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- Robin Ramsay – Politics and Paranoia (2008)
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- Norodom Sihanouk – My War With The CIA: The Memoirs Of Prince Norodom Sihanouk (1973)
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- Anthony Summers – The Kennedy Conspiracy (1980)
- Cass R. Sunstein – Conspiracy Theories and Other Dangerous Ideas (2014)
- Gerald Suster – The Hell-Fire Friars: Sex, Politics and Religion (2002)
- Katharina Thalmann – The Stigmatization of Conspiracy Theory since the 1950s: “A Plot to Make us Look Foolish” (2019)
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- Joseph E. Uscinski – American Conspiracy Theories (2014)
- Joseph E. Uscinski – Conspiracy Theories and the People Who Believe Them (2018)
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- Jonathan Vankin – Conspiracies, Cover Ups And Crimes (1991)
- William Preston Vaughn – The Anti-Masonic Party in the United States: 1826-1843 (2009)
- Jesse Walker – The United States of Paranoia: A Conspiracy Theory (2012)
- Harriet A. Washington – Medical Apartheid: The Dark History of Medical Experimentation on Black Americans from Colonial Times to the Present (2007)
- Gary Webb – Dark Alliance: The CIA, the Contras, and the Crack Cocaine Explosion (2011)
- Eileen Welsome – The Plutonium Files: America’s Secret Medical Experiments in the Cold War (1999)
- Harry G. West – Transparency and Conspiracy: Ethnographies of Suspicion in the New World Order (2003)
- Philip P. Willan – Puppetmasters: The Political Use of Terrorism in Italy (2002)
- Robert Anton Wilson – Everything Is Under Control: Conspiracies, Cults and Cover-ups (1998)
- David Wise – The Invisible Government (1964)
- Adrian Wisnicki – Conspiracy, Revolution, and Terrorism from Victorian Fiction to the Modern Novel (2007)
- David A. Yallop – In God’s Name: An Investigation Into the Murder of Pope John Paul I (1984)
- Hugo Young – This Blessed Plot: Britain and Europe from Churchill to Blair (1998)
- John van der Zee – The Greatest Men’s Party on Earth: Inside the Bohemian Grove (1974)
- Theodore Ziolkowski – Lure of the Arcane: the Literature of Cult and Conspiracy (2013)
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- Илья Яблоков – Русская культура заговора: Конспирологические теории на постсоветском пространстве (2020)
See also Non-fiction on SETI