The Firm is a 1991 legal thriller by American writer John Grisham. It was his second book and the first which gained wide popularity. In 1993, after selling 1.5 million copies, it was made into a namesake film starring Tom Cruise, Gene Hackman and Jeanne Tripplehorn. Grisham's first novel, A Time to Kill, came into prominence afterwards due to this novel's success.

Mitch McDeere is a graduate of Western Kentucky University with a degree in accounting, who has passed his Certified Public Accountant exam on the first attempt and graduated third in his class at Harvard Law School. Mitch is married to his high-school sweetheart, Abby McDeere, an elementary school teacher who also attended Western Kentucky University. His older brother Ray is imprisoned in Tennessee for manslaughter, and his other brother, Rusty, died in Vietnam. His mother sufferes from mental health issues and lives in Florida.