I specialize in copyediting fiction for readers of all ages.

In the past seven years I have been hired as the copyeditor, proofreader, or production editor on more than 600 books for clients that include Penguin Random House, Simon & Schuster, and Granity Studios. Before that I was an in-house copyeditor at Random House Children’s Books and an in-house production editor at Berkley/Penguin. Among the books I’ve worked on are a National Book Award finalist, a Hugo Award winner, two Top 10 Books of the Year, and several instant #1 New York Times bestsellers.

Production Editor

Management of the production editorial stages for each book you’re readying for publication. This service is available only for publishing houses and studios.


Two read-throughs of your manuscript with a focus on standardizing spelling, punctuation, grammar, and style. At this stage, I also read for sense and consistency in timeline, character traits, and scene blocking. Nothing goes unchecked.


Two read-throughs of your typeset pages. Proofreading either the first or second pass of your book involves flagging any lingering editorial errors, typographical errors, alignment errors, tight or loose lines, and inconsistent design elements.

E-book QC

A quality control check of your EPUB file to ensure that your e-book is error-free and matches your print edition. Much like a proofread, this can involve a word-for-word comparison.


Tricia Callahan did a flawless and extremely professional job copyediting an 80K word manuscript for me. She created a beautiful style sheet and in our work process was flexible, punctual and kind—a total pleasure to work with! I cannot recommend her highly enough and very much look forward to working with her again.

Elizabeth Doyle Carey

I screened editors for a book manuscript, selected Tricia, and was thrilled with the results. She easily earned five-stars across the board. In fact, Tricia went the extra mile, far exceeding what was expected in terms of quantity and quality of edits. As an indie author on a tight budget, I was concerned about cost. She proved to be worth every penny (and then some). Highly recommend her.

Jeff Langholz