We selected Stefan Brunnhuber’s work Die offene Gesellschaft: Ein Plädoyer für Freiheit und Ordnung im 21. Jahrhundert (The Open Society – A Plea for Freedom and Order in the 21st Century) for the planned “Eine Uni–Ein Buch” campaign. The book takes up, among other things, Karl R. Popper’s Open Society and Its Enemies, published at the end of the Second World War and stimulates the readers to engage in a critical discourse about today’s society(ies) without getting caught up in political discussions or getting lost in social meta-topics such as globalization, sustainability, digitization, and distributive justice. Brunnhuber is a doctor and economic sociologist, psychiatrist, and economist. The interests of the Dahrendorf student and member of the Austrian Chapter of the Club of Rome are diverse and include considerations on resource wars and peacekeeping, growth, and sustainability.