Bill O'Reilly has worked in a variety of media professions, including political commentator, journalist, author, historian, radio and television host. O'Reilly has authored almost two dozen books, of which his "Killing" series addresses the lives and deaths of such famous figures as Jesus, John F. Kennedy, Ronald Reagan and George S. Patton.
O'Reilly's media career began in Scranton, Pennsylvania, where he served as a news journalist for WNEP television. He subsequently expanded his news experience all over the country, working in Denver, Portland (Oregon) and Hartford. O'Reilly joined ABC News in 1986, eventually taking part in such programs as "World News Tonight," "Good Morning America" and "Nightline." Between 1986 and 1995, he served as anchor of the then-popular entertainment program "Inside Edition."
As a political thinker and commentator, O'Reilly is largely conservative, though he does not claim an unwavering support for every Republican platform position. Since 1996, O'Reilly has hosted his own conservative program — originally called "The O'Reilly Factor," subsequently, "The Factor" — on the Fox News Channel, an effort that also spawned the successful radio show "The Radio Factor," which O'Reilly presented to a national audience until 2009. In addition to his historical works, O'Reilly has also published books of political and social commentary, as well as a memoir entitled "A Bold Fresh Piece of Humanity."