Finance has always played a pivotal role in the global climate change negotiations, as an enabler of action but also as an indicator of the level of trust between developed and developing countries. It will continue to do so in the future – the Nationally Determined Contributions (NDCs) submitted by many developing countries include elements whose implementation is conditional to the provision of financial and other support, and the discussions on finance for adaptation and loss and damage are likely to heat up in future as climate impacts increase. Over the years, the climate finance negotiations have acquired their own layers of complexity, accompanied by their own – often loaded – vocabulary. This Guide aims to help developing country climate negotiators navigate this complexity and understand what has gone by, to negotiate more effectively in future.