* "The Assassination of Patrice Lumumba" (1966): This book details Cordier's investigation into the assassination of the first Prime Minister of the Democratic Republic of Congo.
* "The Poisoned Arrow" (1969): This book focuses on the assassination of another prominent figure, Omar Torrijos Herrera, the Panamanian dictator.
* "The Man Who Knew Too Much" (1973): This book delves into the world of espionage and the role of intelligence agencies.
He also wrote a novel:
* "The House of the Dead" (1976): This is a fictional work that explores themes of political corruption and murder.
Cordier's work was often controversial and he was known for his willingness to expose corruption and wrongdoing within the political and intelligence communities. He was a respected figure in French journalism and his writing had a significant impact on public understanding of these issues.