Welcome to Herrin Editorial, a full-service editing agency based in the Pacific Northwest.
Founded in 2020 by writer-editor September Herrin, Herrin Editorial offers professional editing services to authors at every stage of the writing process.
Whether you’re looking for coaching and developmental editing or you’re ready to polish your finished manuscript with line and copy editing, we have the experience and expertise to help you put your best work forward.
Check out our services page to learn more about what we offer and get to know our editors here.
Discover how Herrin Editorial can help you with your editing needs and contact us today for a quote.
We’re looking forward to working with you!

September Herrin, Founder & Editor
FEATURED TESTIMONIALS
September works meticulously and consistently delivers her best work. She is extremely professional and skilled in her craft. The contributions she made to my project are immeasurable, and I wholeheartedly recommend her services to any author in need of a talented editor to enhance their writing. I also appreciate her flexibility and generosity while working with me.
Lu Camy
Soul Synergy Oracle Deck
September was a delight to work with. Her edit on my disjointed memoir delivered a legible manuscript with my voice maintained. The process was much easier than I imagined. I highly recommend September.
Alexia Elliott
Fierce Power
September's editing substantially improved my non-fiction book. She not only spotted many grammatical and typo errors, but suggested ways of rephrasing sentences that helped make the text more crisp and vivid. I feel lucky to have found such a competent editor."
John Ince
Cannabis The New Way
September helped me write an amazing resume. Kind, professional and skilled, I would recommend her to anyone who needed help when it comes to professional writing.
Garold Mattingly
US Army Veteran