A person writing in a notebook with a black pen, sitting on a bench with a blurred outdoor background.

I’m not the right editor for every writer.

If you’re looking for a light polish or a quick grammar check, there are plenty of options and you can close this tab.

But, if you want your book to communicate something true and do it beautifully without compromise—we should talk.

Here’s what sets me apart: I’m not just a red pen. I tell you exactly why I’m making specific suggestions and edits.

This is a game-changer for you because:

  1. It shows you an editor’s thought process and teaches you to think like an editor yourself.

  2. It empowers you to make informed decisions about when and where to implement suggested changes.

Writing is all about breaking rules. But to break rules, you have to know them. I teach you the rules, and show you how to break them in fresh and innovative ways.

Schedule a free 30-minute chat to tell me about your book and see if I’m the right editor for you.

What my clients are saying:

  • Dr. Stacey L.

    “Working with Maria exceeded my expectations. She is friendly, kind, and communicates thoughtfully. She has an exceptional ability to understand a writer’s needs and offer supportive, actionable solutions that improve both clarity and cohesion.”

  • Sergio G.

    “While I expected simply to receive critique by which to improve my manuscript, Maria was encouraging and kind in her feedback.”

  • Bob B.

    “I would strongly recommend The Editor’s Margin to anybody. What I would tell them is that I felt that the edit was done professionally and exceeded my expectations in terms of delivery time, the cost was very affordable without sacrificing quality.”

  • Judith M.

    “I truly appreciated all your input, Maria. I'm not a natural writer, and it significantly improved my confidence knowing that you were on my team, helping me improve the quality of the project.
    Keep up the standard you have set!”

  • Eric B.

    I’d recommend The Editor’s Margin to anyone who wants more than surface-level editing. They bring a combination of technical skill and thoughtful engagement that respects the author’s voice while still challenging the work in the right ways. If you’re serious about your writing, that balance matters.

  • Eugen H.

    “Maria is knowledgeable, perceptive, and kind. She has a rare ability to pinpoint barriers within a manuscript and address them effectively without ever overwhelming the writer.”

  • Sean S.

    Maria is a great writer and editor. I have her to help me write about my translation business and Bible studies; she delivered superb results on both accounts. The business writing is clear in expressing my messages, and the Bible study writing is poetic and logical. I recommend Maria as your writer and editor if you need help with any sort of writing. She is talented with words.

  • Keri N.

    Working with Maria was a great experience. She provided insightful and constructive feedback when reviewing my manuscript for tenses, grammar, spelling, and punctuation. The formatting brought my book to the next level by adding color to the pages. Maria communicated well and delivered ahead of schedule. I highly recommend that first-time novelists work with Maria. I will be working with Maria on my next book.

  • Eric B.

    I was looking for an editor who could engage with the substance of the work, not just the mechanics. The Editor’s Margin stood out for their ability to meet the tone and intention of the book while still bringing a clear editorial perspective. It felt less transactional and more like a thoughtful partnership around the writing itself.

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Types of Editing

Development Editing

A compelling idea is not enough. Pacing and progression determine whether readers stay engaged.

build a book that resonates

    • Is the structure serving the message?

    • Are arguments or themes unfolding clearly?

    • Does the story arc feel intentional?

    • Where does the reader lose momentum?

    Best for authors who want to ensure their manuscript is built to last.

  • Clients typically spend between $1,500 and $2,000 on a developmental edit of 50k words.

Line Editing

Words, and the skill with which you wield them, are one the most impactful part of writing.

make every sentence count

    • Do your sentences have rhythm? Are they readable?

    • Where does the phrasing and word choice need work?

    • Do readers struggle to follow your thought?

    • Are filler words getting the best of you?

    Best for authors who want their prose to feel fluid, and confident.

  • Clients typically spend between $1,300 and $1,800 for a line edit of 50k words.

Copy Editing

Readers may not consciously identify every mistake, but they can tell the difference between amateur and professional work.

protect credibility

    • Are there inconsistencies that could weaken your reputation?

    • Is your grammar and punctuation perfect?

    • Has the style guide been adhered to precisely?

    • Have you made sure the formatting is consistent?

    Best for authors who want confidence that their work adheres to the style guide before publishing.

  • Clients typically spend between $1,000 and $1,500 on a copyedit of 50k words.

Proofreading

Proofreading is the final safeguard before your manuscript goes public. Because once it’s published, it represents you.

catch what was missed

    • Is the punctuation, spelling, and formatting completely consistent?

    • Are there any distractions that could weaken professionalism?

    • Will the reader be distracted by small errors and miss the message?

    • Do you want peace of mind before printing?

    Best for manuscripts that have already been professionally edited and formatted and are ready for release.

  • Clients typically spend between $600 and $1,000 on proofreading 50k words.

Manuscript Evaluation

Provides you with a clear understanding of where your manuscript stands and how to move forward strategically.

find strategic direction

    • Do you want big-picture feedback on strengths and weaknesses?

    • Have you assessed the structure, pacing, and message clarity?

    • Have you gotten a professional recommendation for next steps?

    • Do you want a sense of direction and concrete suggestions for growth?

    Best for authors early in the process or unsure which level of editing they need for their manuscript.

  • Clients typically spend between $1,000 and $1,500 on a manuscript evaluation of 50k words.

Chat With Maria

Quotes are confirmed after reviewing project scope.

Free Quiz!

Answer six quick questions to figure out what type of editing you need.

Fill out the form to access the quiz. Results will be provided immediately, no other information needed.

The Editor’s Margin does not share names or contact information with third parties.

Maria is a writer and editor from Pennsylvania. Growing up in the Caribbean, she experienced a wealth of culture and different ways of life. Upon returning to the U.S., she moved ten more times before settling down. Words were her only constant.

Maria started reading at age four and discovered writing at fourteen. She has been addicted to watching ink fill a page ever since. She’s a lover of beauty, people, and the Oxford comma.

She trained as an editorial intern, became an assistant to an academic editor, and eventually founded The Editor’s Margin in 2025.

Her favorite genres to edit and read include: Fantasy, Literary Fiction, Memoir, Thematic Non-Fiction, Poetry, or any faith-based work.

A woman with shoulder-length red hair, wearing a white button-up shirt and blue jeans, stands against a stone wall, smiling.

The editor behind it all—
Maria VerMulm

A woman sitting on the grass next to a stone wall, reading a book outdoors during daytime.

“My greatest goal in life is to grow my soul, that I might be filled with all the fullness of God (Ephesians 3:19). I’m convinced that the best way to do that is by exposing myself to as much truth, beauty, and goodness as possible so that I can reflect my Creator and bring Him glory.”

“When I’m not at my desk or down by the creek with my nose in a book, you might find me: cooking, hosting friends, rock climbing, camping, or on an adventure with my husband.”

Schedule a Chat With Maria
A woman with blue eyes and reddish hair is holding a brown book in front of her face, partially covering her nose and mouth. She is looking to her left with a curious expression. The background is a textured beige wall.

Even the margins tell a story.

The “editor’s margin” was extra space that writers left blank on the edges of their manuscript so the editor had room to write critiques and feedback.

Thoughts are scribbled in the margins; ideas take shape, and words learn their power.

At The Editor’s Margin, editing is not just grammatical corrections; it’s collaboration between editor and author.

I bring the reliability of academic training and faithful values, along with enthusiasm for your growth as a writer. If you need thoughtful feedback and true encouragement, you’re in the right place!

Whether it’s a fiction, fantasy, memoir, or nonfiction, I approach each project with the same care: honoring your voice and ensuring quality

because words matter.

What is an editor’s margin?

Christian Editing Services

At The Editor’s Margin, I believe words matter because truth matters. Writing is not only craft, but also calling—to speak and share the truth. Whether you are writing faith-based fiction, Christian nonfiction, devotionals, Bible studies, sermons, or spiritually informed academic work, my role as an editor is to help you communicate your message in alignment with truth, goodness, and beauty.

I work with writers who want their work to honor God while also meeting professional publishing standards.

Faith-centered writing warrants editing that respects both the spiritual message and technical excellence. I want to help you write words of truth and goodness and do it beautifully.

We create because God creates; we are made in His image. And we honor Him in our feeble attempts to mimic Him and create beauty.

Why Christian Authors Choose The Editor’s Margin

My approach to editing is thoughtful and respectful. I do not impose my own theological beliefs, but I do not hesitate to address ideas that could be 1) taken the wrong way, or 2) inadvertently heretical or unbiblical. I do not rewrite theology or doctrine, but I help ensure it is communicated clearly, logically, and responsibly.

Christian authors work with me because I offer:

  • Respect for biblical accuracy and theological nuance

  • Clear, constructive feedback grounded in professional editing standards

  • An editorial partnership, not just a transactional service

  • Experience across Christian fiction, nonfiction, devotionals, and faith-driven content

    Christian editing calls for theological sensitivity, contextual awareness, and a knowledge and respect for Scripture and church history. I provide Christian editing services that understand the importance of being faithful to the Bible and representing Christ well.

Get in Touch With Maria