Peter Woit is currently Senior Lecturer in the Mathematics department at Columbia University. He began his career with a 1985 doctoral degree in theoretical physics from Princeton, then held postdoctoral positions in physics (Stony Brook) and mathematics (MSRI-Berkeley) before coming to Columbia in 1989. He is the author of a 2006 popular book, Not Even Wrong, and a textbook on quantum mechanics and representation theory to be published next year. Since 2004 he has been blogging about mathematics and physics-related topics at http://www.math.columbia.edu/~woit/blog