Conspiracy theories have always been out there, but in the past they were rather isolated concepts focused on specific groups. They often emerged as a result of situations that were difficult to explain conclusively, as well as large-scale events such as terrorist attacks, economic crises, and epidemics. Researchers from the University of Silesia and the University of Ljubljana have been cooperating for several years to analyse movements based on conspiracy theories in three thematic areas: political science (the political potential of conspiracy theories), communication (paths of theory dissemination), and psychology (individuals’ susceptibility to conspiracy thinking). The project devoted a lot of space to analysing the profile of people who turn away from knowledge and science and choose to rebuild their worldview on the basis of conspiracy theories.