This book uses Deleuze’s work to understand the politics of masculinity today. It analyses masculinity in terms of what it does, how it operates and what its affects are. Taking a pragmatic approach, Hickey-Moody shapes chapters around key Deleuzian concepts that have proved generative in masculinity studies and then presents case studies of popular subjects and offers overviews of disciplines that have applied Deleuze’s work to the study of men’s lives. This book shows how the concepts of affect and assemblage have contributed to, and transformed, the work undertaken by the foundational concept of performativity in gender studies. Examining the work of Deleuze and Guattari on the psychoanalytic boy, as exemplified by their writing on Little Hans, Hickey-Moody reconsiders the politics of their approach to psychoanalytic models of young masculinity. In this context, the author examines contemporary lived performances of young masculinity, drawing on her own fieldwork. The field of disability and masculinity studies has taken up the work of Deleuze and Guattari in a nearly unprecedented fashion. Accordingly, the book also explores the gendered nature of disability, and canvases some of the substantive scholarly contributions that have been made to this interdisciplinary space, before introducing case studies of the work of North American photographer Michael Stokes and the popular Hollywood film Me Before You. The book provocatively concludes by challenging scholars to take up Deleuze’s thought to re-shape gendered economies of knowledge and matter that support and contribute to systems of patriarchal domination mediated through environmental exploitation.