To make sure that the final version of your essay puts your best foot forward, proofread it carefully. Work with a hard copy, since reading onscreen often leads to inaccuracies and missed typos. Proofread once for typographical and grammatical errors and once again to make sure you haven’t introduced new errors. (To locate examples of student writing in this book and on the Web site, see the Directory of Student Writing at the back of this book.)