A project this large is almost always a long time in coming together. Many of the chapter authors were long suffering through several rounds of edits and unforeseen delays.We would like to thank those who were on board from the beginning, who believed in what we were trying to do, and who stuck with us. Others came on board later in the project and we’d like to thank them for the swiftness with which they worked. We would also like to acknowledge the support of faculty and student seminar and reading groups at San Diego State University, and colleagues and students at Universities of Leeds and Sheffield. Special thanks go to Fernando Bosco, who allowed some of the ideas in this book to be shared in his ‘Philosophy in Geography’ seminar; and to Charlotte Kenten for all her hard work reformatting chapters and chasing missing information.