Mark Greaney has a degree in international relations and political science. In his research for the Gray Man novels he has travelled to more than fifteen countries and trained alongside military and law enforcement in the use of firearms, battlefield medicine, and close-range combative tactics. He is also the author of seven New York Times Tom Clancy bestsellers, including three written with Clancy: Locked On, Threat Vector, and Command Authority.
I love the Gray Man - Lee ChildGreaney's steady escalation of the risks that Court faces, and the exceedingly clever ways he tackles them, make this entry in the exemplary Gray Man series a can't-miss. - Publishers WeeklySomehow, Greaney cranks out one winner after another. That's a lot of work for the Gray Man and plenty of pleasure for thriller fans. - KirkusMark Greaney continues his dominant run with Agent In Place, the best Gray Man thriller yet and one of the top must-read thrillers of 2018 - The Real Book Spy