This project, focused on training of voluntary teachers active in the youth field, was coordinated by Czech Esperanto Youth and gathered eight organisations, already active at different levels and engaged in different projects focused on youth work and language teaching. The partners in this project were NGOs from Germany, Poland, Italy, the Netherlands, Slovakia, Spain, France.All of them were active in organising language and training courses, seminars and informal meetings in the context of promoting international cooperation and intercultural exchange in the field of youth. Key factor for the quality and success of voluntary teachers was the skills set of the participants involved; based on a needs-analysis carried out by the partnership, this project aimed to qualify the pool of voluntary language teachers to share best experience in a European dimension and to develop and disseminate tools and resources to raise the quality of educational activities in the participating countries and beyond the borders of the partnership. Main project activities were therefore a training of teachers in France (March 2018); 13 teachers - who are working mainly as volunteers or freelancers within the NGO network the partners are part of - were reached. After each meeting, the partners run activities at national and local level. Furthermore, three transnational project meetings were envisaged, both as coordinating meetings and as workshops to work on the project outcomes envisaged by the project (Italy, September 2017; Poland, December 2017; Slovakia, July 2018). Innovative training curricula and methodology were presented, discussed and adapted to the activities of each partner and disseminated within local and national networks. As main products of the project, teaching materials and methods were implemented. The envisaged impact of the partnership project was a higher number and learning efficiency of volunteer-based language teaching activities of NGOs in the participating countries. In the long-term perspective this contributed to raise the quality and recognition of youth work.