Exploring gender through the lens of field theory, Gender Fields proposes a new framework for understanding the social organisation of gender identity. In conversation with Pierre Bourdieu's field theory, the book conceptualises under-theorised situated dimensions of gender, bridging the gap between macro and micro theories of gender. Drawing on extensive fieldwork conducted over five years in several countries in Europe and beyond, the authors situate gender as a critical site of autonomous socio-political struggle and highlight the centrality of the transgender experience in redefining gendered personhood and freedom. Increased trans visibility catalysed new social and political arenas of contestation that expanded the potential for reimagining gender norms and identities. The authors examine political and legal arenas, the medical field and health markets, gender naming, individual practices, and material-discursive embodiments, offering new insights into gender change. While numerous explanations have been proposed, this book offers a fresh perspective on these revolutionary developments. Gender Fields characterises gender as a field of struggle through a set of basic tools that can be usefully applied to studies in diverse settings. As such, it will appeal to scholars across the social sciences with an interest in issues of gender, social theory and identity.