Editing is not just about finding and correcting typos. Your editor may be able to do all sorts of things for your manuscript and for your writing: from correcting spelling and punctuation errors to plot and character development.
I’ve just finished a proofread of a collection of short stories and am looking back at the range of tools and sources I used to complete this job. It’s amazing at the amount of reference material needed to accurately check a text and here is just a summary of the tools I use, some regularly, some less so.
Here is a story about my favourite piece of punctuation.
If you’ve focused on proofreading until now, the idea of copyediting can seem daunting. Here are some tips for coping with that first job. Source: Ten tips for your first copyediting job – CIEP blog