This Training Course aims to present and provide tools and innovative methods of non formal learning to combat with extremism and youth radicalization. The specific objectives of the proposed "Say no for Extremism and Radicalization " training course are as follows: - To furnish youth workers and leaders with tools and innovative methods to work with young people vulnerable to radicalization. - To analyze what are the main reasons and results for the rise of Extremism and Radicalization in different European countries - To re-explore the key concepts, such as stereotypes, prejudices, discrimination, extremism, intolerance and their transformation in European reality - To provide space to youth workers to exchange experience in promoting of intercultural and inter religious cooperation - To share the best practices and methods and to find new to address the problem of youth radicalization for developing new projects for local communities. - To explore the potential of international youth mobility as an opportunity for youth to promote European values. - To promote active citizenship, international dialogue, non-formal education and creative skills of participants. - To establish a network of organizations and individuals for future cooperation to develop new projects promoting tolerance and multiculturalism - To create follow-up projects on promotion of tolerant attitude towards different cultures and religions among youth, especially among those with fewer opportunities.