This document provides guidance on using in-text citations in MLA style. It explains that parenthetical citations should be used whenever quoting or paraphrasing a source, and that they typically include the author's last name and page number. Special situations like omitting the author if already mentioned or using a shortened title if no author are also covered. Examples of properly formatted in-text citations are given. The document concludes by reminding readers that it is better to include too much citation information than too little.