Kevin McCain is Professor of Philosophy at the University of Alabama at Birmingham. He has authored and edited several works in epistemology and philosophy of science. Scott Stapleford is Professor of Philosophy at St. Thomas University in Fredericton, Canada. He has authored and edited several works in epistemology and Early Modern philosophy. Matthias Steup is Professor of Philosophy at the University of Colorado, Boulder. He has edited several books and authored many articles in epistemology.