Terrorism represents a particularly complex object of study: its analysis is a recurrent subject of academic debate and is under constant review in recent years. What is the purpose of terrorism and what are its strategic objectives? What is the perfect ecosystem in which it can best deploy its effects?. Based on these and many other questions, the author explains the multiplicity of factors and variables that must be taken into account to try to determine the definition, types and causes of terrorism, while questioning argumentative inertias and contaminated concepts that are often used. The overall objective is to promote critical thinking and an education around terrorist threats based on knowledge and consideration, in order to be able to analyse how terrorism behaves and to encourage management and prevention from a multidisciplinary and dynamic point of view.