The Executioner (a.k.a. Mack Bolan) is a monthly men's action-adventure paperback book series (published from 1969 - 2020) following the exploits of the character Mack Bolan and his wars against organized crime and international terrorism. The series has sold more than 200 million copies since its 1969 debut installment, War Against the Mafia. Pinnacle Books was bought by Kensington Publishing (Zebra Books and others), and retained the rights to the original 38 novels; they were briefly reissued in the late 1980s-early 1990s.