Training course „Are You Sure? Critical Thinking and Basic Media Assessment Skills in Youth Work” tackled problems related to critical thinking, radicalization and extremism among groups of youth, and methods of assessment of information found in the Internet and various media. The project idea emerged from need to equip youth workers and people actively involved in youth work with tools needed to fight fake news, learn critical thinking, and most importantly, be able to pass those key competences to young people in their local communities, thus preventing and fighting radicalisation and extremism among youth. Participants had a chance to understand the situation of young people in Europe, learn about the Erasmus+ programme, and build their professional networks with other youth workers from programme countries. Objectives of the project stand in line with the objectives of the Erasmus+, in particular by equipping youth workers with tools and competences related to media consumption and critical thinking, youth work using digital technologies, supporting common, democratic and European values, and preventing radicalisation of young people. The project also supported general objectives of the programme, strengthening role of non-formal education, fostering international cooperation, and promoting recognition of non-formal education (promoting Youthpass).