Guillaume Marche, professor of American studies (society, politics, and culture) at Université Paris-Est Créteil (France), specializes in contemporary social movements in the US. His publications deal with the LGBTQ movement, sexuality, subjectivity, and collective mobilization. His current work also addresses the use of activists’ biographies as sociological sources as well as infrapolitical forms of intervention in public spaces (e.g., graffiti and LGBTQ theatricality).