Roger Friedland is Professor Emeritus of Religious Studies and Sociology at the University of California, Santa Barbara, US. He is the author of Amore (2014), co-author of The Fellowship: The Untold Story of Frank Lloyd Wright and the Taliesin Fellowship (with Harold Zellman, 2007), Matters of Culture: Cultural Sociology in Practice (with John Mohr, 2007), and To Rule Jerusalem (with Richard Hecht, 2000). Friedland is currently writing two books, one with the philosopher Ted Schatzki on practice institutionalism and the case of cryptocurrency, and the other with the French sociologist, a theoretical and dialogical autobiography with Laurent Thévenot on institutional logics and the theory of conventions.