The twin towers of the World Trade Center were blown up on behalf of the US government. Vapour trails in the sky contain chemicals that cause disease. The moon landing never took place; it was staged in a studio. Many people believe in conspiracy theories: supporting evidence can seem plausible, until you look closely. To refute conspiracy theories often requires scientific and technical knowledge. Dr. Holm Gero Hümmler has precisely this sort of knowledge, and he is able to communicate it clearly for laypeople. In his book “Conspiracy Myths” he provides guidelines on how to deal with questionable facts. He gives valuable tips for personal research and shows how to deconstruct well-known conspiracy theories – from 9-11 to the “earthquake machine” HAARP, to chemtrails and “Nazi UFOs”. Sometimes, refutation is easy: you only need a sand pit and game pieces ...