This document provides information on avoiding common punctuation errors such as run-on sentences, comma splices, and fragments. It explains what commas, periods, and semicolons signify and how to correct sentence structure issues. Specifically, it outlines five ways to correct run-ons and comma splices: using a period, semicolon, semicolon with a transitional word, comma with a FANBOYS conjunction, or joining sentences with a subordinating conjunction/relative pronoun. The document emphasizes practicing examples to determine the proper punctuation.