John Clarke received the B.A., M.A. Ph.D., and Sc.D. degrees in physics from the University of Cambridge, Cambridge, U.K. in 1964, 1968, and 2003, respectively.,From 1968 to 1969, he was a Postdoctoral Scholar at the University of California, Berkeley. He has been a Faculty Member of the Physics Department since 1969 and is also a Faculty Senior Scientist at Lawrence Berkeley National Laboratory, Berkeley. His research interests include fundamental aspects of superconductivity, and the development and application of low- and high-transition-temperature superconducting quantum interference devices to a broad range of problems, including low-frequency nuclear magnetic resonance and magnetic resonance imaging, decoherence in mesoscopic circuits, biosensors, and axion detectors.,Prof. Clarke is a Fellow of the Royal Society. He was the recipient of the Keithley Award of the American Physical Society in 1998, the Comstock Prize in Physics of the National Academy of Sciences in 1999, and the IEEE Council on Superconductivity Award in 2002.