Ramamurti Shankar is the John Randolph Huffman Professor of Physics at Yale University, in New Haven, Connecticut. His research is in theoretical condensed matter physics, although he is also known for his earlier work in theoretical particle physics. In 2009, Shankar was awarded the Julius Edgar Lilienfeld Prize from the American Physical Society for “innovative applications of field theoretic techniques to quantum condensed matter systems”. He received his B. Tech in electrical engineering from the Indian Institute of Technology in Madras and his Ph.D. in theoretical particle physics from the University of California, Berkeley. After three years at the Harvard Society of Fellows, he joined the Yale physics department, which he chaired between 2001-2007. He is a fellow of the American Academy of Arts and Sciences. He is dedicated to teaching and has published three texts: Principles of Quantum Mechanics, Basic Training in Mathematics: A Fitness Program for Science Students, and Fundamentals of Physics. He recently gave a lecture at IIT Kanpur on the application of relativity to GPS.