A copyeditor will check the manuscript for basic grammar, style and consistency. The copyeditor will also check the manuscript for spelling, capitalization, punctuation, verb tenses, and citation consistency. The copyeditor will suggest changes in the manuscript to ensure that there is overall consistency. A proofreader checks the manuscript for errors or typos but is not suggesting copyedited changes. This is why the book will be copyedited first and then proofread second.
—AUPresses Faculty Outreach Committee