The aim of current guidebook is to provide guidance on how organisations can develop efficient energy advocacy activities, including stakeholder engagement, roadmapping, marketing and communications, fundraising and policy analysis. These skills will empower and enhance the co-operation in the sustainable energy sector. Finding a path towards sustainable development will require the pooling of diverse perspectives, knowledge and resources. The purpose of this handbook is to be a practical guide targeted for Central and Eastern European countries. The hope is that a wide spectrum of users can take it up and adapt the content to their own circumstances.