Often confused with copyediting, proofreading actually comes after the copyediting stage. Proofreaders fix typographical and mechanical errors and other mistakes that may have been missed by the copyeditor; often the last ones to edit a document before it goes to print, proofreaders ensure that there are absolutely no errors. They compare the latest stage in the project to earlier stages and make sure changes have been made correctly. Proofreaders may also check for formatting issues and offer design and layout suggestions.
