Have you got a current driving licence? amoxicillin potassium clavulanate tablets lp Clancy was the author of more than 25 books. Seventeen of those reached the No. 1 spot on the New York Times bestseller list. Several of his books, including "Clear and Present Danger," and "Patriot Games" were adapted into blockbuster films. His most famously and frequently used fictional character is Jack Ryan, an investment broker turned academic and CIA agent. Ryan stars in eight of Clancy's novels, beginning with "The Hunt for Red October," and has been played by Ben Affleck and Harrison Ford in films based on the books.