What is the author's style in The Glory Field by Walter Dean Myers?

The novel is written in English. The reader may notice that the characters' speech is primarily in the vernacular. Vernacular, in this instance, refers to the way in which the characters speak to one another. The vernacular is more conversational than language found in books or printed materials. In several instances, the reader may notice that the characters' language is not always grammatically correct. As a result of who the characters are and their life circumstance (especially in the case of those characters who are slaves), their English is slightly different than those characters from later periods in history.