Tricia Callahan

Tricia Callahan – Editor

Former Penguin Random House employee with 16+ years' experience copyediting and proofreading fiction and nonfiction for readers of all ages


After nearly a decade in various production editorial roles at Penguin Group and Random House, I relocated from New York City to Portland, Oregon, and launched my freelance business.

I regularly contract with big 5 publishers, small presses, and independent authors who are readying their books for publication. My expertise is fiction, and I am highly experienced in copyediting original manuscripts, proofreading page proofs, proofreading covers and promotional material, and managing the production editorial process.

In the past nine years, I have copyedited and proofread more than 600 books for publishers such as Penguin Random House and Simon and Schuster, including the Atlantic and New York Times Top 10 Book of the Year UNDER THE SKIN by Linda Villarosa, the Time and New York Times Top 10 Book of the Year ASYMMETRY by Lisa Halliday, Washington Post Top 10 Book of the Year THE LIBRARY BOOK by Susan Orlean, National Book Award finalist NEVER CAUGHT by Erica Armstrong Dunbar, Hugo Award winner THE FIFTH SEASON by N. K. Jemisin, and several books in the bestselling LAST KIDS ON EARTH series by Max Brallier, now on Netflix.

In my experience, a manuscript is ready for copyediting only once it's been edited by a professional content editor. Likewise, your book is ready for proofreading only once it's been edited by a professional copyeditor and formatted for print and/or e-book publication.
Action & Adventure Comics & Graphic Novels Literary Fiction Middle Grade Young Adult
Writing & Publishing
English (US)
  • Writing Medal, Loyola College in Maryland

Work experience


Jan, 2014 — Present

Copyedit and proofread book-length manuscripts and page proofs on a project basis. Provide production editorial services for publishing companies on a contract basis. Copyedit other content as needed, which has included book covers, websites, newsletters, and reports.

Amazon Publishing

Jun, 2023 — Present

Provide full-time coverage on the Thomas & Mercer and Little A lists as a temporary contractor. Work closely with editorial, design, marketing, publicity, and operations as well as with external vendors to ensure Amazon Publishing's books reach market on schedule and at the highest quality level.

Amazon Publishing

Feb, 2022 — Dec, 2022 (10 months)

Provided full-time coverage on the Thomas & Mercer and Montlake lists as a temporary contractor. Worked closely with editorial, design, marketing, publicity, and operations as well as with external vendors to ensure Amazon Publishing's books reached market on schedule and at the highest quality level.

Howler Magazine

Jan, 2013 — Nov, 2015 (almost 3 years)

Directed the copyediting department for eight issues, hiring copyeditors and proofreaders and approving edits to features, infographics, timelines, illustrations, and essays that won contests and recognition in The Best American Sports Writing series.

Random House Children's Books

Feb, 2012 — Jan, 2014 (almost 2 years)

Copyedited and proofread range of fiction and nonfiction for young readers, including board books, picture books, Little Golden Books, coloring and activity books, chapter books, junior novels, and middle grade and YA fiction and nonfiction. Lead copyeditor on the Teenage Mutant Ninja Turtles series, Monsters University series, Eric Carle titles, and Barbie books, among other licensed series.

Slice Magazine

Mar, 2009 — Oct, 2012 (over 3 years)

Oversaw all aspects of production and operation, including conceptualizing features and soliciting short stories, performing substantive editing and copyediting, promoting and fund-raising, managing editorial and production staff of 20+, including hiring and training, liaising with authors, and publishing interviews with Ha Jin and Simon Van Booy as well as original stories by Ramona Ausubel, Kathy Fish, and others.

Penguin Group (USA)

Oct, 2006 — Feb, 2012 (over 5 years)

Promoted from Assistant Production Editor to Associate Production Editor September 2010. Promoted to Production Editor April 2011. Oversaw and coordinated edits through production, from manuscript to bound book, of nonfiction (self-help, cooking, memoir, trivia, humor, inspiration) and fiction (historical romance, contemporary romance, paranormal romance, mystery) in trade and mass-market imprints Perigee and Berkley.


Asymmetry: A Novel

Lisa Halliday

A TIME TOP 10 BOOK OF THE YEAR The bestselling and critically acclaimed debut novel by Lisa Halliday, Asymmetry, hailed as “extraordinary” by The New York Times, “a brilliant and complex exami... read more
Copy Editing
Dear Martin

Nic Stone

INSTANT NEW YORK TIMES BESTSELLER"Raw and gripping." —Jason Reynolds, New York Times bestselling coauthor of All American Boys"A must-read!” —Angie Thomas, #1 New York Times bestselling author... read more
The Library Book

Susan Orlean

Susan Orlean, hailed as a “national treasure” by The Washington Post and the acclaimed bestselling author of Rin Tin Tin and The Orchid Thief, reopens the unsolved mystery of the most catastro... read more
#1 New York Times BestsellerA People Kid Pick of the weekFrom the mind of basketball legend and Academy Award–winning storyteller Kobe Bryant comes this radically original portrait of five you... read more
Copy Editing
Copy Editing
Made with Reedsy
Reality Gold (The Shifting Reality Collection)

Tiffany Brooks

Gold Award Winner in the 2018 Literary Classics Book Awards for YA ContemporaryLiterary Titan Gold Book Award 2018Bronze Medal in the YA Adventure Readers Favorite Awards 2018Semi-finalist in ... read more
Copy Editing
Made with Reedsy
Little Moss, Big Tree

M. Yap-Stewart

~ 2018 SCBWI Spark Honor WINNER ~ SCBWI Announces Spark Award Winners: "Little Moss, Big Tree won the Spark Honor for Illustrated Book. Author M. Yap-Stewart and illustrator Mariya Prytula's p... read more
THE IDEA is a manual for conquering the most important part of the screenwriting or fiction writing process — the first part. Most writers rush too quickly through choosing a story idea, so th... read more
Made with Reedsy
Bullies and Peeps

Suhre, J.D.

Copy Editing
Made with Reedsy
The Eye of Ra

Gartner, Ben

Copy Editing Proofreading
Made with Reedsy
Beyond the Arc: A Novel

Brundage Jr., Vernon

Don't miss this gripping, emotional prequel to the hit Netflix series, Stranger Things! The never-before-told backstory of the beloved Dig Dug maven, Max Mayfield, written by New York Times be... read more
Copy Editing
Before you watch the upcoming Netflix series (The Dark Crystal: Age of Resistance), read these original novels from J. M. Lee that tie into the events of the series.Jim Henson's The Dark Cryst... read more
Copy Editing
Light, hoppy, and bursting with flavor, Craft Beer Mad Libs goes down easy.Grab a pint of your favorite brew and settle down with Craft Beer Mad Libs. Featuring 21 fill-in-the-blank stories, t... read more
Copy Editing
Soon to be a Netflix Original series! The New York Times and USA Today bestselling series, with over two million copies in print!"Terrifyingly fun! Delivers big thrills and even bigger laughs.... read more
Hey Mom

Louie Anderson

With wry wit and poignant humor, Louie Anderson, New York Times bestselling author and Emmy Award–winning comedian starring in Louis C.K. and Zach Galifianakis’s Baskets, shares his journey of... read more
Copy Editing
A book of reflections for those seeking wisdom, guidance, encouragement, and inspiration on the road to a meaningful lifeAs a prominent woman juggling many roles, Maria Shriver knows just how ... read more
The Waning Age

S. E. Grove

From the New York Times bestselling author of The Glass Sentence, a lightly speculative, relevant puzzle box with undertones of Never Let Me Go.The time is now. The place is San Francisco. The... read more
Copy Editing

David Arnold

“Top-notch” —USA Today “Illuminating” —Washington Post “A breath of fresh air” —Entertainment Weekly “Memorable” —People By the New York Times bestselling author of Kids of Appetite! After the... read more
Copy Editing

Tricia has 33 reviews





Tash D.

Tash D.

May, 2023

Tricia was a breeze to work with! So glad I hired her. She really paid attention to the legal and high-impact copyright issues I might have with my book that I couldn't see or anticipate myself.
Vernon B.

Vernon B.

Mar, 2023

It was truly a pleasure to collaborate with Tricia. Her review was extremely thorough, and her attention to detail is unparalleled. She was able to catch issues that other editors had overlooked. She also communicated frequently throughout her proofreading process, providing updates on her timeline and the scope of the work, as well as offering feedback on the story. Tricia more than exceeded m...
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John S.

John S.

Oct, 2021

Working with Tricia is a must for me! She helped me copyedit my book and make it look professional. I highly recommend collaborating with her on your book.
Emily B.

Emily B.

Apr, 2021

I chose to hire Tricia because it was evident from her offer that she had read my proposal carefully and understood the specific scope of the project: a final proofread of typeset pages, not an in-depth copyedit. Her offer was clear and detailed, and it provided a realistic timeline. She also suggested an epub review, which was helpful. Tricia was a pleasure to work with. She checked in occasio...
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John S.

John S.

Oct, 2020

Tricia copy edited my upcoming middle grade fiction book. I was very pleased with the quality and detailed nature of her work. She improved my manuscript with her changes and gave me confidence that it was close to being ready for publication.

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