eTwinning "The community for schools in Europe" is a safe internet platform providing a range of activities from joint projects for schools at national and international level, collaborative spaces and professional development opportunities for teachers. The eTwinning network of schools, teachers and pupils is unique in its scale and scope and has no precedent or comparator within or outside Europe. Ten years have passed since the eTwinning action was first launched, and this report marks the occasion by taking stock of the programme¿s key achievements and areas in need of further development, through an analysis of a large-scale survey of eTwinning teachers launched at the end of 2014. The survey was designed to investigate how the programme is affecting participating teachers¿ professional practice and how might it improve the professional development services it offers. Thanks to the 6,000 eTwinners who voluntarily answered the survey, the current report provides grounded evidence on which eTwinning can develop its services to the educational communities of Europe.