The Psychology of Conspiracy Theories presents an engaging introduction to the origins of widespread belief in conspiracy theories. Through a discussion of the history of conspiracy theories, the book will debunk the myth that they are a modern phenomenon, exploring the broad contexts they can appear in from politics to the workplace. It will then go on to consider why some people are more susceptible to these beliefs than others, and why such beliefs are not a pathological trait. The book draws on a wealth of examples surrounding events and issues such as the 9/11 terrorist attacks and climate change, the author will also discuss the social and evolutionary roots of conspiracy theories and their relationship to intergroup conflict.