In recent decades, there has been an explosion of research on BDSM, spanning disciplines and methodological approaches. The growing body of research on BDSM unpacks many of the early assumptions in the field, including that BDSM is only or always a sexual or erotic interest, activity or identity, that interest in BDSM is pathological or indicative of mental illness, and many others. In this special issue, scholars of BDSM explore core questions in the field, including how best to understand the practices, identities, and communities that fall under the broad umbrella of BDSM, whether and how to disentangle the disparate subcommunities and identities that are often lumped under the category of BDSM, the urgent need to critically examine the role of whiteness, white privilege, and racism within both BDSM communities and BDSM scholarship, and the question of whether and when BDSM is appropriately understood through a sexuality lens. The introduction to the special issue highlights emerging themes and pressing gaps in the field of BDSM studies and provides an overview of the contributions to the special issue.