Regarding your last question, I know of no editor who gives a money-back guarantee for occasional errors that happen to slip through or for a different opinion by a later editor. I’m afraid such things are just the nature of the publishing beast. But by having a shorter portion edited first, you will get a decent feel for whether someone is the right editor for you, and will be able to be confident in his or her work on your entire book.
Developmental editing (may also be called structural or content) – looks at the book’s big picture and overall structure in nonfiction or plot and characters in fiction. Developmental editors may assess a book idea, outline, or early draft to tell authors what works and what could be better. The big picture questions need to be answered first before an editor ensures your words are polished and used correctly.
The book provides further support for the importance of government-sponsored R&D by documenting numerous historical facts that demonstrate how government investments created the modern world and fueled the prosperity the world has witnessed over the past 200 years. The book also explains the origin of major technology revolutions over human history in a very accessible way. It ends with an investment strategy and a plan on how our nation can continue its prosperity for future generations.
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!
So because of this and because I don’t live in NYC or LA, I decided I may have better luck writing a book, which I have been doing for several months now and enjoy; however, I know it needs work and I can’t go back to the 5th grade and pay better attention to the simple “put your period here and comma there” lessons so I was hoping to learn as I go with reading, writing and seeing my finished product after hiring an editor.