The WeObserve Cookbook has been especially designed for groups or individuals who are leading or will lead Citizen Observatory projects and initiatives. It provides lessons on best practice and guides users through resources such as tools, scientific papers, training materials and networks. The guidance, tools, resources and insights captured in the Cookbook have been produced, tested and reviewed by the WeObserve project consortium and/or the WeObserve Communities of Practice. Many of the resources are well-documented and have been widely used in citizen science and citizen observatory projects. Most descriptions include a key reference, so you can explore more about their background or their application.