Geoffrey Raymond is an Associate Professor of Sociology at the University of California, Santa Barbara. His research interests include conversation analysis, the role of talk-in-interaction in the organization of institutions, and qualitative research methods. His research has appeared in the American Sociological Review, Social Psychology Quarterly, and Language in Society, among other places. He is co-editor, with Paul Drew and Darin Weinberg of Talk and Interaction in Social Research Methods. Darin Weinberg is a university reader in the Department of Sociology, Cambridge University and a fellow of King's College, Cambridge. In addition to his interest in social constructionism, his research focuses primarily on the practical purposes to which concepts of addiction, mental disorder, and learning disability are applied in various historical and contemporary contexts. He is particularly interested in how these concepts figure in state-sponsored campaigns of social welfare and social control and in what their uses reveal about how and why people distinguish the social and natural forces held to govern human behaviour. His books include Contemporary Social Constructionism: Key Themes (2014); Of Others Inside: Insanity, Addiction, and Belonging in America (2005); Intoxication and Society (edited with Jonathan Herring, Ciaran Regan, and Phil Withington, 2013); Talk and Interaction in Social Research Methods (edited with Paul Drew and Geoffrey Raymond, 2006); and Qualitative Research Methods (edited, 2002).