The Firm (novel)

The Firm is a 1991 legal thriller and the second novel by John Grisham. It was his first widely recognized book, and in 1993 after it sold 1.5 million copies, was made into a film starring Tom Cruise and Gene Hackman. 
Marilyn Stasio of The New York Times wrote that "Mr. Grisham, a criminal defense attorney, writes with such relish about the firm's devious legal practices that his novel might be taken as a how-to manual for ambitious tax-law students."

The Firm (PDF)