The Executioner is a monthly action-adventure paperback book series created by American author Don Pendleton.
Every other month the series was complemented by the release of a "Super Bolan", titles that were twice the length of a standard Executioner novel.
Following the exploits of Mack Bolan and his war against organized crime and international terrorism, both series collectively total 631 novels (453 regular Executioner titles, plus 178 Super Bolan titles).
[1] The series ceased publication in late 2017.