Didier Guignard is a CNRS Researcher at the Institut de Recherches et d'Etudes sur les Mondes Arabes et Musulmans, France. His work focuses on the political, legal and social history of colonial and post-colonial Algeria. His last edited book is Propriété et société en Algérie contemporaine. Quelles approches? (2017). Iris Seri-Hersch is an Assistant Professor in Modern Middle Eastern History at Aix-Marseille University, France. Her work, published in both English and French, explores the history of Mahdist and colonial Sudan, Sudan Studies, and Palestine/Israel. She is the author of Enseigner l'histoire à l'heure de l'ébranlement colonial. Soudan, Égypte, empire britannique (2018).