Patricia M. Schwarz received her BA from San Francisco State University and her PhD in theoretical physics from the California Institute of Technology. Her research specialty is spacetime geometry in general relativity and string theory. She is an expert in multimedia and online education technology. Her award-winning multimedia-rich web site at http: //superstringtheory.com is popular with the public and is widely used as an educationalresource, hosting online physics courses with teachers and students from around the world.