I received my B.S. (1964), M.A. (1966), and Ph.D. (1970) degrees at UCLA and held several postdoctoral positions at Brookhaven National Laboratory, University of California, Davis, and The Rockefeller University before joining the faculty at Brown in 1979. My research at Brown has been supported by the National Science Foundation, U.S. Department of Agriculture, and Department of Energy. Since joining the Brown faculty I have published over 75 peer-reviewed research papers and over 20 invited review articles in the area of tetrapyrrole biosynthesis.