The seminar "Sharing common understanding – debating diverse practices: Put to test European Citizenship Education" and Youth Participationis aimed to bring together project leaders and coordinators, trainers and youth workers from programme countries and neighbouring partner countries to discuss working experiences and strategies of NGOs in their work with youth within the field of European Citizenship Education and Youth participation in order to give new impulses, to share possible ways to break the issue down and to come up with creative ideas and support for practitioners in the international youth field. The seminar is used to reflect approaches, concepts and concrete tools, based on non-formal education with a special focus on those projects and activities which were implemented since 2007. The seminar will provide the occasion to share experiences, to foster sustainable and equivalent partnerships, to support capacity building, to contribute towards inventive projects by exploring new working methods and strategies, to improve the quality of future projects and to develop further activities. The methods used will be based on the principles and practise of non-formal education taking into account the needs, motivations and previous experiences of the participants. Further the seminar will provide space for debate, for individual and group reflection, and encourage exchange of best practices. The debriefings of the common work and the achieved results will be accompanied by theoretical inputs and presentations that will complement the outcomes of the common work, helping to create the theoretical and practical framework in which participants will reflect upon existing examples of own European Citizenship Education projects and those of the other project promoters. The seminar will take place in Ključ, Bosnia-Herzegovina, 23rd – 31st of March 2012.