The ambition of this guidebook is to help practitioners and stakeholders integrate gender equality considerations in climate projects and leverage co-benefits between gender equality and climate action for sustainable development. It is divided into three parts: 1) an overview of co-benefits between gender equality and climate action; 2) an introduction to climate finance concepts, sources and instruments, and a discussion of their associated gender dimensions; and 3) a review of mainstreaming methodologies and tools to incorporate gender in climate change projects.