Careful revision is essential to any writing project.
I can help you clean up problems and fine-tune your work, allowing your ideas to shine.
I'm David Marsh, the owner of IDM Editing. I offer copyediting and other editing services for book publishers, self-publishing authors, and anyone else who needs their work to be as clear, concise, accurate, and consistent as possible.
I'm highly knowledgeable about the nuts and bolts of editing — grammar, punctuation, style guides — and I'm consistently thorough (including basic fact checking), sensitive to the author's priorities, and committed to helping them make their work the best it can be.
I mainly do copyediting and proofreading, but I'm also available for substantive editing — or a customizable mix, depending on the author's needs. I also offer competitive rates and friendly, prompt service.
Contact me to discuss your project's needs, and how I can help.
David was an outstanding copy editor and I wouldn’t hesitate to use him again. His edits were precise and his suggestions most helpful.
Sarah Cox, author, Signs of Life: Field Notes from the Frontlines of Extinction
David took part in a process I was nervous about and made it super simple, and he provided amazing guidance, support, and helpful suggestions every step of the way. Would easily work with David again.
Richard Harris, author, The Seller's Journey
Selected books I've worked on
We've contracted David Marsh on over twenty copyediting and proofreading projects since 2021, and he's never missed a deadline. His clear notes, excellent observations, sensible suggestions, and in-depth queries leave no doubt that the final form of each book will be the best it can be."
Thanks very much for the brilliant job you did.
Paul McKendrick, author, Scrubbing the Sky: Inside the Race to Cool the Planet
Sammy Chin, Managing & Production Editor, ECW Press
Clients
