Amanda Sumner

Amanda Sumner – Editor

Former NY publishing house editor with 30 years of experience. I help authors create books that are even better than they dreamed.

Overview

Hi, author! I'm excited to meet you.

I'll let a few of my clients tell you why you might be excited to meet me:

“Amanda has been my go-to freelance editor for years. She is thorough and thoughtful, and I trust her work implicitly. In fact, she is so good that readers have left comments on how well-edited my book is. Seriously. More importantly, she is a lovely person and a dream to work with. I recommend her highly!!”

— Natalie Charles, Daphne du Maurier Award finalist, Romantic Times Reviewers’ Choice Award winner

“I’m so glad I found you. Your insights and guidance have definitely made me produce stronger work.”

— Alison Ragsdale, two-time Independent Publisher Book Awards (IPPY) medalist

“I could not ask for a more understanding, funny, compassionate, and hard-working editor. For real. You keep me sane and even-keeled when I want to chuck it all in, you talk me down off the ledge when I think I’m utter rubbish, and your enthusiasm for my work makes me want to be a better writer. Please don’t ever leave me.”

— Shawnee Small, two-time USA Today bestselling author

While I love these compliments, nothing gives me more satisfaction than seeing an author’s manuscript start to shine as we work together to shape it into the best book possible. I consider myself a partner to my clients. I scrutinize every word, sentence, and paragraph to make sure it's as strong as it can be—while remaining true to the author’s voice and vision.

My editing career started in 1992 at a small literary press (now part of HarperCollins). I later worked at W. W. Norton, and I edited for Prentice-Hall for years. For over 15 years, I was a member of Romance Writers of America (RWA), and I twice gave workshops (one on editing software and one on writing about sex) at RWA national conferences.

My favorite genres are romance, thriller, paranormal, erotica, women’s fiction, and literary fiction, but I love trying new genres and editing cross-genre projects. I have edited a considerable number of YA novels and a few middle-grade books.

Please get in touch and tell me about your book!

Services
Fiction
Dystopian Historical Fiction LGBTQ Fiction Paranormal Romance Thriller & Suspense Urban Fantasy Women's Fiction Young Adult
Languages
English (CAN) English (UK) English (US)
Certifications
  • Copyediting certificate, University of California San Diego

Work experience

Self-employed

Jan, 2010 — Present
Please see my profile above. In addition to providing copyediting and developmental editing, I also work with my clients to brainstorm new projects and to plan their next career moves. Fun fact: I have an extensive background in pets, dog training, and animal welfare. I have been a board member of the Petfinder Foundation for over a decade.

Lynn University

Jul, 2018 — Feb, 2019 (7 months)
Ensured that this university's materials were as flawless and well-written as one would expect from an institution of higher education.

SilkWords

Jan, 2014 — Jan, 2016 (about 2 years)
Evaluated manuscripts for publication on this romance/erotica fiction website. Edited and/or proofread short stories (including ones with multiple possible story lines (similar to the Choose Your Own Adventure series), ensuring the story flowed no matter which options the reader chose as they navigated through the stories.

W. W. Norton & Company

Dec, 1992 — Dec, 1993 (about 1 year)
Reviewed manuscript submissions, proofread manuscripts, oversaw books through the production process, wrote cover copy and catalog copy, and discussed editorial changes with authors.

Self-employed

Jul, 1992 — Jan, 2010 (over 17 years)
Created compelling, entertaining copy for book publishers, regional newspapers, corporations, a national nonprofit magazine, and a marketing agency. Clients included AT and T (this section apparently doesn't like ampersands!), Prentice-Hall, the Courier-News and the Home News Tribune (central NJ), and the ASPCA.

The Ecco Press (now an imprint of HarperCollins)

Dec, 1991 — Dec, 1992 (about 1 year)
Reviewed manuscript submissions, made editorial recommendations, wrote cover copy and catalog copy, and proofread manuscripts. When I worked there, the Ecco Press also published the literary magazine Antaeus, and I performed the above duties for the magazine as well. A story I chose for the magazine won an O. Henry Award after publication.

Portfolio

Made with Reedsy
Playing for Possession (Playing the Field Book 5)

Lace, Sasha

Montlake

Book Coaching
Made with Reedsy
On the Land, We Shoot Straight

Avice, Sasha

Copy Editing
Finding Heather

Ragsdale, Alison

Made with Reedsy
Wereball: Hate At First Text: A werewolf college romance (Book 1)

Skye, Isabella

Isabella Skye

Book Coaching
A Life Unexpected

Ragsdale, Alison

Veil of Deception (Jason Conrad Thriller Series Book 4)

Lewis, Michael Byars

SATCOM Publishing

Made with Reedsy
Blessed Are Those Who Mourn

Hand, Ashlie

Ashlie Hand

Developmental Editing Copy Editing
Made with Reedsy
Whispers of Blue Ridge: One Night. One Cabin. There's No Going Back.

Purtee, Nina

Porto Banus Publishing

Copy Editing
Copy Editing
Copy Editing
Copy Editing
Made with Reedsy
The City in Chains (The Ashes of Empire Book 1)

Thomas, Michael

Editorial Assessment
Developmental Editing Book Coaching
Angelborn (The Eternal Flame Series Book 1)

Penelope, L.

Heartspell Media

Copy Editing

Amanda has 23 reviews

Professionalism

Quality

Value

Responsiveness

Wendy W.

Wendy W.

Jul, 2026

Pinned
Amanda was great to work with! She was very communicative (even when I wasn't) and was able to work with my restraints and budget. At the end she gave a great assessment and response to my work which just makes me feel like this whole thing is worth it. But she was great overall and I would defin...
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Sam M.

Sam M.

May, 2026

Pinned
Amanda was flexible with my schedule and able to assist in more areas than I originally anticipated. She worked with my personal goals and helped me lay the groundwork for future projects. The resources at her disposal were invaluable and completely changed the way I thought about writing as a wh...
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Oksana K.

Oksana K.

Jun, 2025

Pinned
As a new author, working with Amanda was an incredibly positive experience. Her editorial feedback was clear, insightful, and thorough, offering both strategic guidance and practical suggestions for improvement. She helped me better understand the strengths of my manuscript while identifying the ...
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Matthew B.

Matthew B.

Sep, 2026

Amanda provided a professional and thorough developmental edit for my novel. The edit ultimately took roughly twice the agreed-upon time to complete, and I received very little communication or updates about the delays while I was waiting. Once I received the edit, however, I was very pleased wi...
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Amanda S.
Thank you for your review, Matthew. It was a pleasure working on your project. I do apologize for the lateness and for the delay in communication; as I explained, my child was suddenly hospitalized...
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Jacque H.

Jacque H.

Aug, 2026

Working with Amanda has been such a valuable part of my book editing process. After completing a 120k word manuscript, I had no idea how to even begin revising. She's a book coach and editor that deeply understands both the writing process (where you get stuck in a scene, how to drum up fresh ide...
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