Catherine Knepper

I help writers, experts, and leaders turn complex ideas into books that matter.

For over twenty years, I’ve worked with people who have something vital to say and need a skilled partner to help them say it well. Whether you’re distilling decades of professional insight, uncovering the emotional truth of a story, or translating specialized knowledge for broader audiences, great books require both craft and clarity. My job is to help you achieve both without sacrificing either.

I’ve collaborated on fifteen books, including USA Today and Wall Street Journal bestsellers, Thinkers50 selections, Next Big Idea Club picks, Financial Times best-of books, and Axiom Award winners. More importantly, these books have sparked real conversations, earning endorsements from leaders who rarely give them and the kind of critical attention that moves careers forward and reshapes how authors are seen in their fields.

My editing clients include National Book Award finalists, multiple New York Times bestsellers and Notable Books authors, PEN Award winners, Independent Publisher Book Award recipients, and writers whose work has been named among the year’s best by Time, Entertainment Weekly, and NPR’s Fresh Air. Their books have earned starred reviews from Kirkus, Library Journal, Booklist, and Publisher's Weekly—and landed on reading lists from President Barack Obama to Malcolm Gladwell.

I also develop book proposals that are as carefully crafted as the books they promise. Drawing on deep familiarity with how agents and editors read, assess, and champion projects, I help authors clarify the core idea, articulate market relevance, and demonstrate that the book can deliver. Every proposal I’ve written has sold to a major publisher.

Whether you’re writing your first book or refining your tenth, I provide the editorial partnership required to move from idea to publication—while preserving the voice and vision that makes your work distinctly yours.

Featured Books & Publishers

Books

Publishers

  • Bloomsbury
    Bloomsbury
  • Crown Press
    Crown Press
  • Hachette Books
    Hachette Books
  • HarperCollins
    HarperCollins
  • Harvard Business Review
    Harvard Business Review
  • O'Reilly
    O'Reilly
  • Fast Company
    Fast Company
  • Simon & Schuster
    Simon & Schuster
  • PublicAffairs
    PublicAffairs
  • Wiley
    Wiley
  • Boston Globe
    Boston Globe
  • Countryman Press
    Countryman Press
  • Lake Union Publishing
    Lake Union Publishing
  • Broadway Books
    Broadway Books
  • Oxford University Press
    Oxford University Press
  • Penguin Random House
    Penguin Random House
  • Post Hill Press
    Post Hill Press
  • Rodale
    Rodale
  • Schiffer Publishing
    Schiffer Publishing
  • Seal Press
    Seal Press
  • Sourcebooks
    Sourcebooks
  • Spiegel and Grau
    Spiegel and Grau
  • St. Martin's Press
    St. Martin's Press
  • SkyHorse Publishing
    SkyHorse Publishing
  • Sarabande Publishing
    Sarabande Publishing
  • Hyperion Press
    Hyperion Press
  • Berkley Books
    Berkley Books

More About Me

I’m a writer, editor, and publishing consultant with over twenty years of experience helping authors bring their best work to the page.

I began editing in 2003 while completing my MFA at the Iowa Writers’ Workshop. The Workshop taught me a great deal about the creative side of writing, but it was working as an editor and collaborative writer that taught me the business of publishing—how to position a book, how agents and editors think, how to navigate the distance between a brilliant idea and a manuscript that actually sells.

Since launching my own business in 2009, I’ve worked with hundreds of authors across dozens of genres, collaborated on fifteen books, developed book proposals for major publishers, and cultivated working relationships with many of the top literary agents in the business. I’ve written speeches, op-eds, articles, and book marketing materials. My own fiction has appeared in West Branch, The Florida Review, Memorious, Necessary Fiction, Meridian, Confrontation, and The Maine Review.

My degrees span English literature and philosophy & religion (B.A.), theology (M.Div.), and fiction (MFA)—a multidisciplinary foundation that informs how I think about structure, argument, and narrative across genres. As a writer with experience on both sides of the publishing desk, I’m in a unique position to help you make your book both beautifully crafted and commercially successful.

Ready to discuss your work? Please use the contact form or email me.

Selected Clients

Testimonials

Catherine served as a fabulous, much-needed second reader on my (rather long and complicated) novel, Cloud Cuckoo Land. She helped me tighten language, repair chronological wrinkles, clarify muddled passages, and even invent some terminology. And she served as an essential sounding board for all sorts of revision ideas. Most importantly, Catherine helped me stay confident and buoyant when I was exhausted from the work of assembling the book. I wholeheartedly recommend her services.
Anthony Doerr, Pulitzer-prize-winning author of the novels Cloud Cuckoo Land and All the Light We Cannot See

Services

I work with traditionally and independently published authors, and offer a range of customized editorial and writing services that help make your writing project a creative and commercial success. I take particular care to preserve your unique vision, voice, tone, and style. Final approval for edits is always up to you.


Content Editing

Manuscript Coaching + Line Editing + Developmental Editing

My approach to content editing combines big-picture developmental work with detailed line-level attention. What you’ll receive:

  • Reader response
    I read your manuscript cover to cover first as an engaged reader, not an editor, noting what’s working and why. You can learn as much from your strengths as your weaknesses.
  • Line-by-line editing
    Detailed attention to flow, syntax, and clarity throughout the manuscript. Hands-on, sentence-level editing.
  • Editorial letter
    A careful assessment of the book’s overall strengths and weaknesses, with specific suggestions and a clear revision strategy.
  • Follow-up meeting
    An hour-long conversation to discuss feedback and clarify your revision plan.

After you revise based on my first-pass edits, you’ll send the manuscript back for a final round of editing that includes copyediting. The result is a polished manuscript ready for submission.

The fee for this service is $18 per page (1 page = 250 words).


Book Proposal Preparation

Content strategy & marketing for nonfiction authors seeking traditional publication

My Book Proposal Preparation service gives you a competitive proposal that’s ready to submit to literary agents, acquisitions editors, and publishing houses. I don’t just format what you provide—I collaborate with you to develop each component strategically, ensuring your proposal demonstrates both the book’s market potential and your ability to deliver it.

Components include:

  • Overview and hook
    A compelling case for why this book matters now, written to capture attention in the first paragraph
  • Author bio
    Positioning that establishes your credibility and unique authority on the subject
  • Marketing plan
    A comprehensive strategy covering media outreach, digital marketing, social media, speaking opportunities, partnerships, and audience-building tactics. This isn’t a generic checklist—it’s a tailored roadmap that demonstrates you understand your readers, where to find them, and how to build momentum before and after publication. This section alone often makes the difference between a pass and an offer.
  • Competitive analysis
    Clear differentiation from comparable titles that demonstrates your book’s distinct value
  • Annotated table of contents
    Detailed chapter summaries that show exactly what the book will cover and how it all flows together
  • Sample chapter
    Polished writing that shows agents and editors exactly what they’re buying and what you are capable of

We’ll work together through multiple drafts, refining the proposal until every element is as strong as it can be. The goal isn’t just to check boxes—it’s to build a document that makes agents want to read your full manuscript and editors want to acquire your book.

My rates start at $12,000. To date, every client’s advance has covered the cost of services.


Manuscript Collaboration & Ghostwriting

If you have a strong nonfiction book concept but need a collaborator to help bring it to the page, I work with authors to develop manuscripts that are both well-crafted and market-ready. My role is flexible: some clients provide detailed outlines and substantial content for each chapter, while others prefer I handle the research and writing. We’ll find the approach that works best for your project.

Timeline depends on scope, but a typical manuscript of 60,000–80,000 words takes approximately six months. If you need both a book proposal and a full manuscript, we can structure the work in phases or as a combined package.

My rates reflect the level of collaboration required, the timeline, and other factors such as profit-sharing arrangements. I don’t require a byline and am happy to sign an NDA. Contact me to discuss your project, and I’ll provide a proposal outlining deliverables, terms, and fees.


Consultation Hours

For shorter projects—articles, op-eds, individual chapters, query letters, or publishing consultations—I work at an hourly rate of $150.

Contact

Ready to discuss your project? Please reach out and I’ll get in touch with you soon!