Bachelor, University Maryland, 1974. Master of Arts in Art History, University Maryland, 1984.
Art historian, National Portrait Gallery, Smithsonian Institute, Washington, 1982-1986; private practice curator, fine art appraiser, art advisor, Washington, since 1986. Fine-art public Petra Holtzman Multiples, Inc., Washington and Los Angeles, 1993-1995.
Board member Home for Contemporary Theater and Art, New York City, 1990-1994, Washington Project for the Arts, 1992-1996. Member American Society Appraisers (certified senior appraiser), Art Table.