T-W-S is a Swiss-based organization run by Volker Schweinbenz with the ambition to support schools in school improvement processes and organizational development for high quality learning and instruction.  

We have years of experience of working in schools with teachers and students and are aware of some of the difficulties that can arise.  

Close links to University allow T-W-S to integrate up to date research into our professional development courses and school management consultancy services.