Matching final version (post-edits) of your manuscript against the final finished product. Proofreading is intended to catch any new errors that may have been introduced to the text during content or line/copy editing (yes, it happens). Proofreading also serves as a “final pass” that catches any errors not noted in previous editing passes.
Deliverable for proofreading will be in-manuscript comments noting any instances in the finished book where the material deviates from what’s shown in the final manuscript.
At this time, proofreading is only available for e-books. Print may be added at a later date, if demand dictates.