She is the author of A Blue Hand: The Beats in India, a biography of Allen Ginsberg that focuses on his time in India and of In Extremis: The Life of Laura Riding, a finalist for the Pulitzer Prize in biography in 1994.
She also writes for the Los Angeles Times.
Her book The Convert: A Tale of Exile and Extremism (2011) is a biography of Maryam Jameelah (born Margaret Marcus), a Jewish woman from New York who converted to Islam.
In 2012, she wrote a critical review for the Wall Street Journal of Defender of the Realm, the Manchester-Reid biography of Winston Churchill.