What Does A Professional Book Editor Actually Do? (The Complete Guide for Authors)
While writing a book — a business memoir, leadership guide, or founder's playbook — you may have wondered: Should I hire a book editor? What does a book editor do?
Most people assume a book editor is someone who corrects minor typos and grammatical errors. However, they can do much more than that. They can help you achieve a commanding, engaging, and impactful book.
Professional editors transform an ordinary manuscript into a book that commands authority on the topic and captivates readers.
At Rolling Authors, we receive manuscripts that are fit to publish but without an editor and books that were professionally edited. Almost always, the professionally edited books are the ones that engage the most. Here's a guide to what a professional book editor does, the four types of book editing, and how to choose the best book editor for your book.
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Table of Content
What a Book Editor Does
A book editor does almost everything, barring writing the book for you.
A book editor has an objective, expert eye that an author doesn’t necessarily have for their own book. "A book editor doesn't merely edit for grammar, but rather hones and shapes sentences for emotional impact. It is a holistic approach to writing that seeks to strengthen and enhance your work, not to 'fix' it," says editor Lauren Humphries-Brooks. This is what she means:
They do exhaustive edits on your manuscript with an eye for plot, pacing, structure, voice, and themes, not just whether your commas are in the right place.
They grasp meaning you didn't even know was there, suggesting edits that will help your book's arguments and stories to resonate.
They work creatively and collaboratively with you by applying their knowledge and experience with genre conventions, knowing which rules to bend for the sake of your story.
They help you become a better writer, not just for the current book but for everything else you write after this. "At the end of the day, what editors do is make writers better at what they do," says Renni Browne, founder of The Editorial Department and author of Self-Editing for Fiction Writers.
The Four Types of Book Editing
There are different types of book editing that editors perform, ranging from the highest-level (structural shaping) to the most basic (proofreading). Every professional book editor focuses on one of these levels and applies their expertise. The different types of editing can be imagined somewhere between looking at your manuscript in the forest and examining the leaves.
Developmental Editing: The big picture.
Line Editing: Making your prose sing.
Copy Editing: The nuts and bolts.
Proofreading: The last hurrah.
What Each Type of Book Editor Does
1. Developmental Editing: The Big Picture
Your developmental book editor looks at your manuscript with an eye for structure, flow, and pacing, recommending changes to these elements to help you tell the story better. They might ask questions such as:
Does your book's structure support your argument?
Is your pacing good? Does your book drag in the middle?
Are your chapters in the right order?
Is there a gaping hole somewhere that readers will stumble over?
Do your stories resonate emotionally with readers?
From the Rolling Authors Editorial Department: We worked with a SaaS founder whose manuscript had all the right ideas, but jumped erratically from one topic to the next: from customer acquisition, team building, fundraising, and then back to customer acquisition. A reader couldn't follow seamlessly. We realized that the founder had all the right material; they just needed to reorganize it. A developmental editor would ask: What framework should this book use? How can it follow a clear story arc? The answer was to organize it as customer acquisition -> team building -> fundraising -> exit, with the founder's content fitting into this framework. The book became vastly more compelling as a result.
"The developmental editor addresses the 'forest' — the overall content, clarity, conviction, and flow of the book," says the Editorial Department.
2. Line Editing: Finding Your Voice
Your line book editor works on a line-by-line basis, shaping your writing to make it sound exactly how you want it to sound. Line editors don't just look out for grammar and punctuation. They:
Make sentences less redundant
Use better word choice
Make smoother transitions
Keep your style consistent throughout the book
Give your book a distinctive voice.
From the Rolling Authors Editorial Department: We once edited a book by a fintech CEO who used dense language— academic and factual... but also monotonous. Our line editor managed to preserve all the information while making the writing readable, engaging, and even a bit fun. The book was transformed into something that could be read in one sitting.
"A gifted line editor can... bring out the author's voice. And a distinctive narrative voice gives writers a real edge," Browne notes.
Good line editors will never impose their voice onto your book — "If we make a change in wording, it sounds like the author at his/her best, not the editor," says Browne.
3. Copy Editing: The Nuts and Bolts
Your book's copy editor focuses on grammar, punctuation, and spelling to make sure that your book has no typos or grammatical errors. Meanwhile, they will also check for:
Consistency (hyphenated words, maintaining uniformity, etc.)
Fact checking (did you cite the sources correctly?)
Creating a style sheet for your book
From the Rolling Authors Editorial Department: A consulting partner's manuscript mentioned a Harvard Business Review study that they cited incorrectly. A copy editor will spot this type of error potentially hurtful to the author's credibility, especially when they’re supposed to be an expert on a particular topic.
4. Proofreading: The Last Hurrah
Finally, your book’s proofreader looks over your manuscript one last time to make sure that there are no typos, formatting issues, or page breaks in the wrong places. Proofreaders assume that your manuscript is basically ready to be published, except for the occasional typo that no one else has caught.
Meaning, proofreading is not a substitute for copy editing. If your manuscript still has structural issues or grammatical errors, proofreading won't be able to fix them; you risk publishing an unpolished book.
Do You Need a Book Editor?
Yes, always. The reasons are simple, as explained by professionals in the field:
You can't see your own blind spots. "Your manuscript is your child, and who among us is capable of 100% objectivity about our own children? I wouldn't dream of writing anything for publication without having it critiqued by at least one of our editors and the final draft line edited," says Renni Browne.
AI can't replace human book editors. While tools like Grammarly can catch some grammatical errors, they can't fix deeper issues with your book's structure or pacing. They can't tell you whether your stories will resonate with readers. Most importantly, they can't understand your audience.
Your reputation is on the line. Sloppy books get panned, especially in business publishing where books serve as credibility boosters for the author. Your book is your evidence as an expert on the topic. "A book editor has distance from the text that the writer doesn't, and knowledge of writing and structure that can't be found in an editing program," says Humphries-Brooks.
The market demands editing. If you want to get traditionally published, your manuscript needs to be edited first by an acquiring editor followed by a copy editor before it can be published. If you're self-publishing, hiring an editor to maintain the editorial standard is even more important — there is no one there to ensure that your manuscript is up to par.
How to Choose the Right Editor for Your Book
Not all editors are created equal. Here’s our framework for finding the right book editor for your needs:
Step 1: Know What Your Book Needs
Acknowledge the state of your manuscript.
Do you have a draft but don’t know if its structure is right? You need a Developmental Editor.
Is your structure sound but the sentences lack flow? You need a Line Editor.
Is your writing sharp, but you need to fix grammar/spelling/punctuation? You need a Copy Editor.
Is the writing polished, and you just need a final review? You need a Proofreader.
Step 2: Find Someone With Genre Experience
A Romance book editor will have their own niche skills different from a Business book editor’s. At Rolling Authors, we specialize in nonfiction books, including business books, books on leadership, and more. We know that a founder’s book needs to do more than just tell a good story — it needs to convince readers to become customers.
Step 3: Read Books They’ve Edited
See if the author’s voice comes through, if you can understand and agree with the arguments made, and if you’d trust the person to edit your book.
Step 4: Ask the Right Questions
Ask these five questions to any book editor you’re considering:
“What type of editing do you think my manuscript needs?”
“Can I see a sample edit of my first chapter?”
“What is your editing process?”
“How do you deal with rejections of your suggestions?”
“What are you hoping to accomplish by editing this book?”
Pro Tip: Great book editors are collaborators, not critics.
As editor and author Lauren Humphries-Brooks points out: “Editors are not judges — we’re not here to tell you that your writing is good or bad… Find someone that you feel comfortable with, and who fits with what you want for the book.”
How Much Does It Cost to Edit a Book?
There are three factors that determine book editing costs:
Word count — A 150,000-word book will cost more to edit than an 80,000-word book. Know your word count before getting quotes.
Type of edit — Developmental editing is more involved than proofreading, costing more.
Timeline — Many editors charge more for rush jobs since it requires them to prioritize your manuscript over the others. Most professional editors have a waiting list of 1–3 months, so it’s best to plan ahead of time. Another consideration is whether you’re asking for a comprehensive edit or selective edit. In our experience, many authors try to skip developmental editing and only prefer copy editing — but that’s an oversight. If your book has structural problems, a copy edit won’t fix it.
Rolling Author’s Book Editing Process
When you choose to work with Rolling Authors, you find that our professional book editing process is designed to help you get the most out of your book, including elevating the content itself. We use the following five-step book editing process:
Stage 1 – Manuscript assessment: We read your book manuscript and give you a detailed editorial report about what works, what doesn’t work, and which type of editing your book needs.
You review our report and ask any questions you might have.
Stage 2 – Developmental edit: We revise and reorganize your book to maximize impact and follow the recommendations in our editorial report.
You approve our suggested structure and provide any missing content.
Stage 3 – Line edit: We revise every sentence in your book to ensure that each sentence communicates your intended message clearly and powerfully, while still retaining your unique voice.
You review our suggested line edits and provide any feedback.
Stage 4 – Copy edit: We edit your book for technical correctness, including grammar, punctuation, and fact-checking.
You provide any feedback, and we make final revisions.
Stage 5 – Proofread: We perform a final, comprehensive review of your book to catch any remaining errors.
You give the final approval.
Why Choose Rolling Authors?
Professionals who understand business books — We understand what it takes to write an authoritative book about business, including books by CEOs and other executives
Collaborative edits — We critique and work with you to revise your book rather than criticizing it.
End-to-end support — We help you from conceptualization to book launch, including manuscript editing.
Focus on authority — We help you write a book that brings out your expertise in your field.
How to Work With a Book Editor for the Best Results
The relationship between an author and an editor should be collaborative rather than adversarial. To get the best results from a book editor, keep these four tips in mind:
1. Know your goals
Make sure you have specific goals for your book before the editor begins the editing process. What do you want readers to do after reading your book? Do business with you? Buy your product? Follow your advice? Having clearly defined goals will help the book editor do an effective job. If you’re not sure what you want, that’s okay — just let the book editor know, and they can work with you to define goals.
2. Don’t take feedback personally
While a book editor’s job is to make your book the best it can be, it doesn’t mean they think your book is terrible while giving feedback. As author and book editor Lauren Humphries-Brooks points out: “While you need not take everything an editor says as set in stone, you also shouldn’t dismiss things out of hand — after all, you came to an editor to improve your writing.”
3. Let the editor do their job
It’s important that you don’t try to micro-manage the book editing process. While it’s good to ask questions, there’s no point in arguing over every change. It’s important to maintain collaboration rather than cookie-cutting.
4. Know when to stop
It’s important to know when to stop editing a book. After all, every edit makes the book slightly better. A professional book editor will know when a book is ready to be published. If you’re struggling to decide whether or not to make more edits, ask your book editor for guidance. According to book-editing.com: “It’s possible to refine a book too much. At some point, the author needs to decide that it’s time.”
Frequently Asked Questions
What’s the difference between an editor and a proofreader?
An editor focuses on the content and structure of your sentences and story, whereas a proofreader focuses on purely mechanical aspects such as spelling, punctuation, and grammar — assuming the text itself is already sorted beyond the minor corrections.
Do book editors rewrite your book?
No, professional book editors make suggestions and provide guidance, but they don’t rewrite your book for you. Rewriting a book is best suited for a ghostwriter, not an editor.
How long does it take to edit a book?
It depends on how long the book is and what type of editing is required. Most full-length books take between two to six and above weeks to edit, with developmental edits taking the longest and proofreading taking the shortest amount of time.
Should I copyright my book before sending it to an editor?
Most professional book editors include a clause in their contract stating that the text belongs to the author, and that the editor has no copyright claims over the text. If this isn’t included, ask the book editor to add it before sending your manuscript.
Can I use Grammarly instead of a book editor?
No, Grammarly and other similar tools can only catch surface-level grammar issues. An experienced human book editor can’t be replaced by software. A book editor can help you restructure your arguments, improve your writing, and tell you that “Chapter 7 really should come before Chapter 3.”
Conclusion
A professional book editor is indispensable to build authority, attract serious readers, and present one’s thoughts and content in the best possible light. Whether one needs help with developmental editing, line editing, or copy editing, a qualified specialist will deliver exceptional results.
Rolling Authors has been providing professional editorial services to CEOs, founders, consultants, and editors. Our specialists are ready to assist in publishing a book that will successfully convey the author’s message and help them build authority with their audience.
A book’s success depends on the author’s expertise and the quality of editing and proofreading. To ensure that your professional opinion comes across clearly and makes a difference.
Our specialists provide professional manuscript assessments, developmental editing, line editing, copy editing, consultation services, and more. To learn about the specific benefits of each service and understand how it may support one’s career goals, feel free to contact Rolling Authors via WhatsApp. You may share your manuscript and book idea – our specialists will analyze it and advise which type of editing assistance is the most beneficial for you.
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