After completing studies in political science, Thierry Meyssan worked for an international association defending civil liberties, before taking up investigative journalism.

During the course of his career, he has been an expert on human rights issues advising the Conference on Security and Cooperation in Europe (C.S.C.E.), as well as editor-in chief of the monthly magazine Maintenant.

An attentive observer of international affairs, T. Meyssan was intrigued by the anomalies in the first photographs released of the attack on the Pentagon, then by the confusion and contradictions in official statements, including those about events at the World Trade Center. He thus carried out his own investigation, which led him from surprise to surprise, each more astonishing and terrifying than the last.