This chapter draws the themes of the book together and, in particular, reflects on the use of the mapping techniques used by the various authors in the book in helping the research process. It highlights key aspects and outcomes from the case studies, and considers the lessons that may be learned for researching environmental sustainability. It discusses mapping, environmental sustainability, systemic practices, participatory research, and methods and methodology. It concludes that although mapping or diagramming is a valued and valuable parts of research praxis into environmental sustainability, this is not the only or better way to do research. The authors express hope that the book inspires readers to apply mapping in complex environmental situations.