Tom Clancy's Op-Center: Call of Duty by Jeff Rovin is an exciting paperback book in the Tom Clancy's Op-Center series. This action-packed novel takes readers on a thrilling adventure filled with suspense, intrigue, and high-stakes missions. With its gripping storyline and well-developed characters, Call of Duty is a must-read for fans of military and espionage thrillers. The paperback format makes it convenient for reading on the go. Dive into the world of Tom Clancy's Op-Center and experience the excitement of Call of Duty.