Revised and updated for the first time in 2023—Now includes strategies for debunking conspiracies regarding the coronavirus pandemic, election fraud, QAnon, UFOs, and more. The Earth is flat, the World Trade Center collapse was a controlled demolition, planes are spraying poison to control the weather, and actors faked the Sandy Hook massacre. All these claims are bunk: falsehoods, mistakes, and in some cases, outright lies. But many people passionately believe one or more of these conspiracy theories. They consume countless books and videos, join like-minded online communities, try to...