If you are done with your book, it’s time for an editor. Whether you publish traditionally or independently, you’ll want someone with fresh eyes to take a close look at your work.
One thing you’ll want is someone who respects your voice, but who can still find problems you may have missed.
Here are some tips for meeting your next best friend.
How to Find an Independent Editor to Review Your Work – Writer’s Circle
http://writerscircle.com/2014/09/how-to-find-an-independent-editor-to-review-your-work.html
sharon p. lynn 
I agree editing and editors are a must. No matter how critical I am of my work, I’ll never see things an editor will. And most often they are simple things, twisting a poem slightly, making a poem flow as one instead of in separate stanzas.. such tiny changes, such big alterations to the work!