This handbook aims to inspire, to guide, to trigger, enhance and enable action and to work with nature. It has been designed for all volunteers and staff of the Red Cross and Red Crescent Movement, but it is also useful to community members and partners at government agencies and non-government organisations (NGOs) working on disaster risk reduction and in humanitarian contexts. Prior knowledge of DRM is helpful but not essential. The most important terms and concepts are explained in the chapter on foundations. Reading the Nature Navigator will help work with nature to reduce disaster risk. The Nature Navigator serves as an assistant in this process of making communities more resilient. It gives background and technical context, case studies and examples, steps to take (from small to large), an application toolbox with tools to work with, and a facilitation toolbox to train others.