The International School of Stuttgart is a school with an international clientele. It has extensive experience with work on a national and European level, and has participated in a Comenius project already. The school is now orientated more in a European direction and is constanty asking itself how it can attain a more European orientation. The first step was made through a goal-orientated training of teachers through European Professional Development or job-shadowing in European schools. In these European schools teachers developed international contacts, learnt how to use ICT in subject teaching and came to know about new methods as well as innovative curricula. This helped the participants to engage in the planning and management of international and European projects, to reflect upon and optimize their teaching up to now and to disseminate the knowledge and skills they developed through their participation, to their colleagues. The school firstly identified the quite specific needs regarding the quality of work and the faculty and then, with the help of the Erasmus data bank, and with long-term educational partners of the school, found appropriate and relevant courses. For the job-shadowing we have chosen countries that seemed to us to be interesting from the point of view of their specialities and innovations (for example, use of ICT in learning, using innovative methods, implementing new curricula to improve quality learning). All participants of mobilities applied, from specific subject areas. In order to ensure that by communicating the knowledge gained, more colleagues will profit from, improve and disseminate school-wide initiatives, each participant should present on the knowledge and skills they gain. Long-term, this European professional development should lead to motivation as much for the visiting teachers as well as for the participants of the courses. European projects bring great gains for the school, as mobility measures turned out to be much more personal and effective than usual and national trainings and exchanges. All in all, through this project the school managed to optimise its teachers' professional development, made the teaching more inter-cultural and more digital and developed new school measures that will be for the benefit of all teachers in the schools. The professonal development process has been changed and documented, new methods are going to be implemented and interesting curricula have been made known amongst the colleagues. The training results dovetailed into the planning for step 2, in which a multinational and a regional partnership in Key Action 2 has started. In our work on innovative curricular, the findings and experiences of the colleagues have been included.