Marvin L. Cohen is University Professor of Physics at the University of California, Berkeley, and Senior Faculty Scientist at the Lawrence Berkeley National Laboratory. His research covers a broad spectrum of subjects in theoretical condensed matter physics. He is an elected member of the National Academy of Sciences, the American Academy of Arts and Sciences, and the American Philosophical Society. He has received numerous awards, including the US National Medal of Science, the Buckley Prize and the Lilienfeld Prize of the American Physical Society, the von Hippel Award of the Materials Research Society, and the Dickson Prize in Science. He has received honorary degrees from the University of Montréal, Hong Kong University of Science and Technology and the Weizmann Institute of Science. He is a past President of the American Physical Society.