Michael G. Long is the author or editor of books on civil rights, religion, and politics, including Jackie Robinson: A Spiritual Biography, which was selected as a best book of the year by Publishers' Weekly; Gay Is Good: The Life and Letters of Gay Rights Pioneer Franklin Kameny; Beyond Home Plate: Jackie Robinson on Life after Baseball; Martin Luther King, Jr., Homosexuality, and the Early Gay Rights Movement; and Marshalling Justice: The Early Civil Rights Letters of Thurgood Marshall. Long also served as an expert historian for Ken Burns's documentary on Jackie Robinson. He lives in Pennsylvania with his family.