Periodically I share info about editing. It’s not cheap to have your manuscript edited so for indie-publishing it’s tempting to try and work around paying someone else to do it. Here is another source that doesn’t recommend doing that (and, of course, neither do I. And it’s not just because I am an editor. If you’re serious about making money on your book, you need to have an editor look at it).
As you may have read on this blog, I think you can avoid hiring a proofer if, if, if, if you get at least 3 people to proof your book, three people who haven’t read it yet. Three people who know basic grammar and punctuation. That may be a big IF for some. (For print, it has to be on the actual book – the ARC [Advanced Reader Copy] – because you need to have people make sure things like the headers and footer are correct and the text is formatted correctly [no widows or orphans – lines of text or words left at the top or bottom of a page).
Sandra Beckwith (great book-stuff blogger) reviews this book about editing by Sandra Wendel.
If you question the need for a book editor, be sure to read my review of “Cover to Cover: What First-Time Authors Need to Know about Editing.”