The document discusses the five basic rules for using commas: (1) between two independent clauses joined by a coordinating conjunction, (2) after introductory words or phrases, (3) in a series, (4) with cumulative adjectives but not coordinate adjectives, and (5) to set off nonrestrictive elements. It provides examples for each rule and a short quiz to evaluate understanding of comma usage. The document concludes by requesting anonymous feedback on the training through a course evaluation.