Proofreading is the last stage pre-publication, catching those pesky errors that, despite much self-editing, slipped through the net. That's it. That's all it is.
At e-Scribes, however, we don't get too bogged down in which precise type of editing you need. Whatever it is, we do it!
While we do detail the editing types available (because authors like to see we do know the difference, ha!) we are really just charging you to do whatever it takes to polish up your book as best we can. We're not going to get halfway through your script and come back to you complaining that what began as a copy-edit has become a line edit in parts. We just crack on... happily.
Having said that, if your book is quite polished already, we will offer a lower fee for the proofread as it's an easy job.