What is the author's style in A Time to Kill by John Grisham?

Grisham's novel is told in a straightforward way, often with an eye to subtle humor. The events and expository material are related simply and clearly. However, dialogue serves to advance the plot and color the story at almost every turn, and that dialogue is the key to understanding the characters of the novel. For example, we listen to the Klansmen talk hate-talk as the whiskey bottle goes round in the cabin, and this helps us understand a position that might be shocking to readers but is absolutely logical and necessary for them.