William Manning Marable (May 13, 1950 – April 1, 2011) was an American professor of public affairs, history and African-American Studies at Columbia University. Marable founded and directed the Institute for Research in African-American Studies. He authored several texts and was active in progressive political causes. At the time of his death, he had completed a biography of human rights activist Malcolm X titled Malcolm X: A Life of Reinvention (2011), for which Marable won the 2012 Pulitzer Prize for History.