Self-Help Book Proofing & Edit

I have completed a non-fiction, self-help manuscript and now need a fresh, professional eye to bring it to publish-ready quality. I’m looking for both content editing and meticulous proofreading: tighten... (Budget: £10 - £15 GBP, Jobs: Book Writing, Content Writing, Copy Editing, Copywriting, Editing, English Grammar, English Spelling, Non-Fiction Writing, Proofreading, Publishing)