Cleckley later wrote in The Mask of Sanity that "Thigpen, my medical associate of many years, has played a major part in the development and the revision of this work".
[citation needed] In 1957, with Cleckley, Thigpen co-authored the book The Three Faces of Eve, the first popular account of a case of multiple personalities (now called dissociative identity disorder).
They had previously published a research article on their patient "Eve" in 1954, documenting the psychiatric sessions and how they came to view it as a case of multiple personality.
[3] The book was made into a film, The Three Faces of Eve, released later in 1957, and starring Joanne Woodward, who earned an Academy Award for Best Actress for her role, and Lee J. Cobb as her psychiatrist, called Dr. Curtis Luther.
[7] During the mid-1960s, Thigpen stated his opposition to the policy direction of the Vietnam War, believing that it was not being fought to win, and vehemently disagreed with increasing the role of government in citizens' lives, particularly in the medical field, a trend he predicted would result in a decrease in the general quality of healthcare.
Thigpen, C. H. and Moss, B. F., Jr., "Unusual Paranoid Manifestations in a Case of Psychomotor Epilepsy and Narcolepsy," Journal of Nervous and Mental Disease, 122: 381–385, October, 1955.