The single most decisive factor should be the quality of the edit itself: Will this editor help improve your book? In order to assess this, nothing beats a sample edit (even if you have to pay for it). Testimonials and credentials (such as experience at a major NY publisher) can help you narrow your list, but you should submit the same sample to a variety of editors and compare their work side by side. Some editors will push too hard, and some won’t push hard enough; some will simply “get” your writing, while others will seem to speak another language entirely. In my experience, the editor’s résumé is far less revealing than the quality of the sample edit. In fact, the higher an editor’s pedigree, the more reluctant the editor might be to provide a sample edit. Don’t be afraid to insist: no one should expect you to invest in a car without a test drive!
I am not without sympathy when some new authors get “sticker shock” upon hearing an estimate for my editorial services, and I am actually relatively affordable. (Most reasonably well-written novels would not cost even close to $3000 for me to edit, let alone $5000.) I also offer generous installment plans and discounts for bundled services. But there is a limit to how low I can go.
Blake, that’s wonderful info. Thank you. I completely understand the response about guaranteeing the work. That was just something that popped in my head as I read a book written by a screenplay consultant I hired years ago and he wanted a review so I read it to help him out but found maybe 5 or 6 error’s myself in the 200 page book. I felt like it was unprofessional but didn’t have the heart to tell him. But the errors stuck out like a sore thumb so I was curious if that is normal or not.
2. Copyeditors aren’t the last line of defense when it comes to a book’s mistakes. Formatting, which is done after an editor has done their job, can lead to unintended errors being introduced into the text. That’s why it’s important to hire proofreaders to comb through edited text *after* the book has been formatted for print or digital. Proofreaders are your last line of defense—but they’re human too.