First, decide whether your time or your money is worth more to you right now. You can greatly reduce the amount of money your project will cost by investing more time, and vice versa. If time is no object, you may want to spend some hours in the library reading style manuals and going through your manuscript with a fine-toothed comb so that when you do hire an editor, (s)he will be able to zip through it quickly. If you end up deciding that’s more effort than you want to invest, then you will at least find the monetary cost of hiring someone to do it for you a less bitter pill to swallow.
When you get that email, particularly if it's your first book, make sure you are well-rested and in a positive frame of mind before you open it. If it’s your first book, the editing process will be hard on your ego, but remember, the editor’s job is to make your book better and help you learn the craft. You are paying for them to give you critical feedback, not to pat you on the back and say ‘good job.'
If an editor’s rates seem skeptically low, send an editing test, ask for references or a sample, place a hidden message in your post, and see if they understand the different types of editing. If an editor passes all of these tests, even if she’s a newbie, give her a try. This could save you hundreds of dollars and help you find a skilled editor who is competent and affordable.
Copy editors catch spelling mistakes, errors in grammar, and inconsistencies in your text. They know when compound words are hyphenated (or not), whether the book is ‘laying’ or ‘lying’ on the table, and whether eagles have ‘talons’ or ‘claws.’ They’ll go through your manuscript line by line for accuracy and consistency of style. A good copy editor will make sure that your voice remains intact while restructuring sentences, and substituting weak word choices for stronger ones.
As for multitasking, believe it or not, I try to schedule so that I am only working actively on one book at a time. Research keeps showing that “multitasking” is actually less efficient, because of the time lost to leaving behind one task to restart another. (Think of it this way: If you take on two clients at once for work that would take one week each with your full attention, either you can tell both clients the work will be done in three weeks because you’ll be alternating between them, or tell one client it will be done in one week and one that it will be done in two weeks, because you’ll complete one before you start on the other. Which of those makes more sense?) Obviously, with back-and-forth communications, sometimes complete “monotasking” is impossible, but I think it should be considered the ideal.
The result will be a very clean and much improved manuscript, but with lots of comments and suggestions, which will probably require some rewriting and extra work on your part. Getting back a heavily edited manuscript like this can be challenging, but know that it will drastically improve your writing skills and help you identify your weaknesses. During the revision process, it’s possible to create new consistency issues, which is why we recommend a final proofread or at least some beta-readers to help finalize your manuscript.
I find many of these responses by Trish to be unethical trolling for business on another editor’s conversations. Trish may be an excellent editor, but her actions here leave me speechless. I agree with a lot she says, but what if her dealings with me are as unethical as her trolling here. I expect expertise and experience from my chosen editor. But, before that, I expect a high ethical standard and professional interaction on the web.
It can take some time to find the right editor, so you may want to start asking around even before you have a text that is ready to send. If you know a fellow author who can recommend someone, that’s wonderful, but if not, it’s fine to poke around the websites of some editors and see who appeals to you (and seems to work within your genre). Then contact them by whatever method they request (often a contact form on their site).