Edward Jay Epstein, born December 6, 1935, was an American investigative journalist and a professor of political science at institutions including Harvard University, UCLA, and MIT. He held degrees in government from Cornell University, where he was a student of Vladimir Nabokov, and a PhD from Harvard. Epstein's career included teaching but he is primarily recognized for his extensive writing.

His notable works delved into significant historical events and industries. Early in his career, he published influential critiques of the Warren Commission's investigation into the John F. Kennedy assassination, later compiling these into "The Assassination Chronicles." Epstein also wrote about the diamond industry, detailing De Beers' marketing strategies in "The Rise and Fall of Diamonds," and explored the world of intelligence agencies in books like "Deception: The Invisible War Between the KGB & the CIA" and "Dossier: The Secret History of Armand Hammer." His later work included "How America Lost Its Secrets: Snowden, the Man and the Theft," examining Edward Snowden's leak of classified documents. Epstein passed away on January 9, 2024, at the age of 88.

Edward Jay Epstein built a career as both an academic and a prolific investigative journalist. He held teaching positions at prestigious universities such as Harvard University, the University of California, Los Angeles, and the Massachusetts Institute of Technology, focusing on government and political science. His academic background included a BA and MA from Cornell University, where he was taught by Vladimir Nabokov, and a PhD from Harvard. After his teaching stints, Epstein dedicated himself to writing, producing a body of work that examined complex subjects ranging from political assassinations to the economics of global industries and the intricacies of intelligence operations.

Epstein's literary output frequently focused on controversial and impactful subjects. His early work critically examined the Warren Commission's findings regarding the John F. Kennedy assassination, establishing his reputation as a meticulous investigator. He later turned his attention to the diamond industry, exposing the marketing tactics employed by De Beers to create perceived value and demand. Furthermore, Epstein delved into the clandestine world of intelligence agencies, writing about the CIA, the KGB, and figures like Armand Hammer, often drawing on interviews with key individuals. His research also extended to contemporary issues, including the leak of classified documents by Edward Snowden.

A recurring theme in Edward Jay Epstein's work is the examination of how truth is constructed, manipulated, and perceived, particularly in areas involving government, powerful industries, and intelligence operations. His early books on the JFK assassination questioned official narratives and the establishment of truth. His exposé on the diamond industry revealed the manufactured nature of value and desire. In his writings on espionage and political figures, Epstein often sought to uncover hidden agendas and deceptive practices. This deep dive into the mechanisms of influence and information control underscores a consistent thread of inquiry throughout his career.