The Secret Rulers of the World is a five-part documentary series, produced by World of Wonder Productions and written, directed by, and featuring Jon Ronson. The series was first shown on British Channel 4 in April and May 2001. The series details Ronson's encounters with conspiracy theorists. It accompanies Ronson's book "Them: Adventures with Extremists", which covers similar topics and describes many of the same events which seem to be manifesting before our very eyes 21 years later.