He received his B.S. in Chemistry from the University of Rochester (1988), C.P.G.S. in Natural Science (Chemistry) from the University of Cambridge (1989), and Ph.D. in Chemistry from the California Institute of Technology (1997). From 1996-1998 he was an American Cancer Society Postdoctoral Fellow at the Massachusetts Institute of Technology. Len's research interests include nuclear magnetic resonance spectroscopy as a probe of molecular and biological structure and dynamics.