Nicolas Barnett is a critical care physician based at the Royal Free Hospital in London. He has over twenty years of experience working in the National Health Service. He has an interest in the medical humanities.

Nicholas Chare is Professor of Art History in the Department of History of Art, Film and Audiovisual Studies at the Université de Montréal. He is the co-author (with Dominic Williams) of Matters of Testimony (2016) and The Auschwitz Sonderkommando (2019) and the co-editor (with Valérie Bienvenue) of Animals, Plants and Afterimages (2022).

Dominic Williams is Assistant Professor in History at Northumbria University. He is the co-author (with Nicholas Chare) of Matters of Testimony (2016) and The Auschwitz Sonderkommando (2019) and the co-editor (with Sarah Cushman and Joanne Pettitt) of The Routledge Handbook to Auschwitz-Birkenau (2025).