Il créa le terme «agnotologie» pour décrire l'étude de l'ignorance ou du doute induite par la culture, en particulier via la publication de données scientifiques inexactes ou trompeuses[4],[5].
(en) Proctor, Robert N., Cancer Wars: How Politics Shapes What We Know and Don't Know about Cancer, New York, BasicBooks, (ISBN978-0-465-02756-9, LCCN94038792)
(fr) Robert N. Proctor, La guerre des nazis contre le cancer, Belles Lettres, Paris, 2001 (ISBN2-251-38049-3).
(de) Proctor, Robert N., Adolf Butenandt (1903-1995): Nobelpreisträger, Nationalsozialist und MPG-Präsident: Ein erster Blick in den Nachlass, Max-Planck-Gesellschaft zur Förderung der Wissenschaften, Berlin, 2000
(de) Proctor, Robert N., Blitzkrieg gegen den Krebs. Gesundheit und Propaganda im Dritten Reich, Klett-Cotta, Stuttgart, 2002 (ISBN3-608-91031-X)
(en) Robert Proctor, Golden Holocaust: Origins of the Cigarette Catastrophe and the Case for Abolition, 2012[6]
(en) Cross, Gary S. et Proctor, Robert N. (2014), Packaged Pleasures: How Technology and Marketing Revolutionized Desire, Chicago: University of Chicago Press (ISBN9780226121277).
(en) Patricia Cohen (14-06-2003). "History for Hire in Industry Lawsuits". New York Times. "The historical profession has really not been prepared for this, said Robert N. Proctor, a professor of the history of science at the University of Pennsylvania, who in 1999 became the first historian to testify against the tobacco industry. We don't have disclosure rules for publications, we haven't had discussions about the ethics of whether to testify or not to testify."
(en) Karen W. Arenson (22-08-2006). "What Organizations Don't Want to Know Can Hurt". New York Times. "there is a lot more protectiveness than there used to be, said Dr.Proctor, who is shaping a new field, the study of ignorance, which he calls agnotology. It is often safer not to know.
(en) Andrian Kreye (2007). "We Will Overcome Agnotology (The Cultural Production Of Ignorance)". The Edge World Question Center 2007. Edge Foundation. 6. "This is about a society's choice between listening to science and falling prey to what Stanford science historian Robert N. Proctor calls agnotology (the cultural production of ignorance)"