The author of nine published novels, I have over fifteen years proof-reading, ghost-writing, and editing experience. In that time, I have worked with all kinds of clients - from first-time authors to the far more established - on all kinds of different projects: fiction, non-fiction, memoir/biography, self-help books, scientific and academic texts, etc.
In terms of my working practices, I will edit your 10,000-word non-fiction book in three stages. Firstly, a basic edit to eliminate any typos, grammatical lapses, the repetition of words/phrases, etc. Secondly, a more developmental edit focusing on structure, flow, phrasing, and word choices, etc - making sure that everything is in its logical, relatable place to have the desired effect on the reader. And thirdly, a final proof to ensure that your writing has that essential professional polish.
I use Track Changes in Word, can make a start right away, and look forward to hearing from you.