Michel Callon (1945-2025) was professor and honorary member of the Centre for the Sociology of Innovation at the École des Mines de Paris. His most recent book is Markets in the Making: Rethinking Competition, Goods, and Innovation (2021).

Koray Caliskan is professor of strategic design and management and founding dean of the Faculty of Systems and Cultures at Parsons School of Design, the New School, where he teaches economic sociology and design. His most recent book is Data Money: Inside Cryptocurrencies, Their Communities, Markets, and Blockchains (2023).

Donald MacKenzie is professor of sociology at the University of Edinburgh. His most recent book is Inside Digital Advertising: Platforms, Power, and Material Politics (with Koray Caliskan, 2026).