What is the author's style in The Chamber by John Grisham?

The Chamber is written in a straightforward manner. Overall it is a contemporary novel. The only use of specialty language occurs when the inmates refer to an execution as a "thang" and a message as a "kite". A notable example of foreshadowing can be seen in Rosen's threat regarding Adam's employment at Kravitz and Bane. The subject comes up again, many chapters later, and Rosen follows through with his threat, but Adam ultimately prevails.