Maurizio Viroli is the author of numerous works in political theory and of a study of Machiavelli's political philosophy. A professor of politics at Princeton University, he lives in Princeton, New Jersey, and Forli, Italy.
Lorraine Daston is director at the Max Planck Institute for the History of Science and honorary professor at the Humboldt-Universit�t, Berlin.Gregg Mitman is William Coleman Professor of the History of Science and professor of medical history and science and technology studies at the University of Wisconsin, Madison.