International Rivers – The guide “Making Maps that Make a Difference: A Citizens Guide to Making and Using Maps for Advocacy Work” introduces the power and process of mapping for communities facing destructive development project, including the benefits of mapping, ideas for types of information a community might usefully map, step-by-step instructions for creating basic maps, important sources of data, low and high-tech methods for collecting data, and tips and checklists for strategically incorporating maps in a campaign.