Successful education systems are those that promote leadership at all levels, thereby encouraging teachers and principals, regardless of the formal positions they occupy, to lead innovation in the classroom, the school and the system as a whole. This report summarises evidence from the OECD...

"This publication summarizes the evidence that underpinned the 2015 Summit, bringing together data analysis and experience to develop better education policies for better lives ... It is mainly based on data and comparative analysis from several OECD publications: TALIS 2013 Results: An...