John R. Taylor is Emeritus Professor of Physics and Presidential Teaching Scholar at the University of Colorado at Boulder. He received his B.A. in mathematics from Cambridge University and his Ph.D. in physics from the University of California at Berkeley. In 1966, he joined the faculty at Colorado, where his research interests include quantum scattering theory and the foundations of quantum theory. Professor Taylor has won numerous teaching awards, served as Associate Editor of the American Journal of Physics, received an Emmy Award for his television series called "Physics 4 Fun," and given "Mr. Wizard" lectures to some 40,000 school children throughout Colorado. He has written three internationally best-selling textbooks, including the landmark Classical Mechanics, Introduction to Error Analysis, and Modern Physics for Scientists and Engineers.