Improved energy efficiency (EE) is a critical response to the pressing climate change, economic development and energy security challenges facing many countries. This handbook draws on the experience of hundreds of energy efficiency experts around the world as well as extensive searches of energy efficiency good governance case studies and literature. The findings from this study are presented as guidance to practitioners and stakeholders on how to address the many EE governance issues. EE governance is a complex topic, so this handbook is organised according to the three main governance areas