Financial geography is concerned with the study of money and finance in space and time, and their impacts on economy, society, and nature. In the introduction, Ron Martin talks about the emergence of the ‘geography of money’ as a new subdiscipline, stressing its close relationship to economic geography. The specific form(s) of financial interaction capacity also interact with geographic effects. Though rooted in geography, financial geography is more than its subdiscipline. As such, financial geography has a rich tradition that goes back to at least the 1980s. This tradition has been revitalized and financial geography made more interdisciplinary than ever in the wake of the global financial crisis, which laid bare the inadequacies of the mainstream approaches to money and finance in economics. In practice, however, scholarship indicates that relationship between finance, geography, and development functions in reverse. This chapter also presents an overview of the key concepts in this book.