Private is a series of thriller novels by American author James Patterson (and various co-authors). The series follows protagonist Jack Morgan, who runs an organization called Private – a detective agency that will get a job done with maximum force and discretion (even if they have to break a few rules in the process).


Mark T. Sullivan is an American novelist of mystery and suspense novels. He has collaborated on Private novels starring Jack Morgan with bestselling author James Patterson. Sullivan grew up in Boston, where he was born, and served in the Peace Corps.