Jason Letts

Jason Letts – Editor

NYTimes Bestselling Editor with 15+ years experience. Worked with George R.R. Martin, Kristin Hannah, Scott Lynch, Diana Gabaldon!

Overview

New York Times Bestselling Editor, Top 10 Bestselling Author with 500k in sales, Top Reedsy Editor with 175+ 5-star reviews! Specializing in Fantasy, Sci-Fi, Mystery/Thrillers, and Romance!

I've worked with tens of thousands of authors over the past 15+ years to produce and promote books, leading to millions of book sales. Get the knowledge and experience for your book that can put you in position to succeed. I'm especially familiar with helping brand-new authors get established.

More than just making corrections to grammar and punctuation, what I try to do is create a writing course tailored to your specific needs based around your manuscript. Expect lots of comments and edits in the track changes that will teach you important aspects of writing fiction and serve you well for everything you write. Hiring an editor is an investment in your writing ability as much as it's about perfecting your book, and my goal is to make sure that investment pays off for you many times over.

*A professional operation with low wait times and fast turnaround times

*An emphasis on writing skills and comments to help you improve as a writer while getting your book ready for publishing

*A dozen years in the publishing industry with books that we've edited getting onto the New York Times bestsellers lists and getting picked up by traditional publishers in deals worth millions of dollars

*The safety and security of working with a company that has a track record of working with tens of thousands of authors over hundreds of thousands of transactions

I've worked with publishers such as Penguin Random House, Simon & Schuster, Macmillan, HarperCollins, and some of the biggest authors in the business, including:

GEORGE R. R. MARTIN

KRISTIN HANNAH

SCOTT LYNCH

DIANA GABALDON

JOE ABERCROMBIE

KARIN SLAUGHTER

BLAKE CROUCH

SOPHIE KINSELLA

And many, many more!

"The editing service was top-notch. A more thorough job than most mainstream publishers do." --Eugenia Riley, Romance Author

"I was very satisfied with the editing, and my Amazon reviewers felt the same. One wrote: 'It is well written and I found absolutely no errors'. --Lloyd Lofthouse, Thriller Author

"The editing was excellent and more than I expected--much appreciated!" --Andrew Tanner, Science Fiction Author

"They exceeded my expectations! Jason provided exactly the level of editing I requested at a price I found fair and reasonable. Their turnaround times on my projects were outstanding. I will definitely work with them again in the future and have already recommended them to friends."

--Kathleen Baldwin, Historical Fiction Author

"I am so glad I found this editor. Jason did a thorough and professional edit on my manuscript and did so with a fast turnaround. His sharp-eyed edits and insightful comments were exactly what I needed to get my book to the next level, and his fee is extremely reasonable. I highly recommend him."

--Caroline Cooney, Speculative Fiction Author

Services
Fiction
Contemporary Romance Epic Fantasy Literary Fiction Mystery & Crime Science Fiction Thriller & Suspense Young Adult
Languages
English (US)

Work experience

Self-employed

Jan, 2012 — Present

Portfolio

Tuf Voyaging: A Novel

Martin, George R. R.

Random House Worlds

Angel Falls: A Novel

Hannah, Kristin

Ballantine Books

Moth (The Moth Saga Book 1)

Arenson, Daniel

Moonclipse

The Weight of Blood (The Half-Orcs Book 1)

Dalglish, David

Eschaton Press

Murder in Blue: A Susan Sorella Mystery

Avery, Mike

Fearless Advocates Press

The Price of Power: Book 1

Michel, Michael

Chainbreaker Books

Jason has 200 reviews

Professionalism

Quality

Value

Responsiveness

B. E.

B. E.

May, 2024

Pinned
Jason was great to work with! He's super fast and responsive. He's the best editor I've worked with. Not only did he give my manuscript more variety in words, when he made suggestions/edits or corrections, he explained why (which was super helpful to me). I will definitely be using him again and ...
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Terry B.

Terry B.

May, 2024

Pinned
I chose Jason based on his reviews, and he did not disappoint. This consummate professional goes above and beyond what regular editors do. Jason adds notes, pieces of advice, strengths/weaknesses, places for improvements, grammar explained, etc., at all stages of his editing. All of this is done ...
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Gavin M.

Gavin M.

Apr, 2024

Pinned
Jason has helped me out immensely and has been an absolute pleasure to work with. Not only did he edit and proofread my manuscript in less than a week, but he also provided excellent insights for plot improvement, some of which I thought "Why didn't I think of that before?". His ability to set th...
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Jeffrey M.

Jeffrey M.

Nov, 2025

Jason's high regard is well deserved. He is extremely fast, competent, and a master of punctuation. I'll never look at a comma the same after his edit. I don't know how he can perform the edit so quickly and thoroughly but he does.
Chris K.

Chris K.

Nov, 2025

Jason was great from start to finish! He answered all my questions and was very detailed in his work.

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