If you’re writing your first nonfiction book, I want to start by saying that making mistakes along the way is completely normal. Every author I’ve ever worked with has taken a wrong turn or two, and so have I. But there are a handful of common mistakes first-time authors make that I see again and again, and the good news is that each one has a gentle, practical fix.

After years of coaching and editing first-time nonfiction authors, I’ve noticed that most of these mistakes don’t come from a lack of talent. They come from not knowing what the process is supposed to look like. Once you can see the path, it becomes much easier to stay on it.

So in this post, I’ll walk you through seven of the mistakes I see most often, why they happen, and what you can do instead. If one of them sounds a little too familiar, please don’t worry. You’re right where a lot of good books begin.

1. Starting to Write Before You Know Who the Book Is For

This is one of the most common places I see authors get stuck. You have a topic you care about, so you open a document and start writing. A few chapters in, the book starts drifting, because it’s trying to speak to everyone at once.

The fix is to picture one specific reader before you write a single chapter. Who are they, what are they struggling with right now, and what will be different for them after they finish your book? When you can answer those questions, every decision about what to include gets easier. If you’re still weighing a few ideas, my post on how to choose a topic for your nonfiction book walks you through narrowing things down, and Is My Book Idea Good Enough? helps you check whether your idea is ready to write.

2. Skipping the Outline

I understand why this one happens. When you finally feel ready to write, outlining can feel like one more thing standing between you and your book. But in my experience, the authors who outline first are the ones who finish. The authors who skip it often end up rewriting the same early chapters over and over, because they’re trying to decide what the book is about and write it at the same time.

Your outline doesn’t have to be fancy. A one-sentence summary of each chapter, with a few supporting points underneath, is plenty to get started. My step-by-step guide on how to outline a nonfiction book shows you how to choose the right structure for memoir, self-help, and how-to books.

3. Editing While You Write the First Draft

It’s so tempting to reread yesterday’s pages and start polishing them. The trouble is that polishing as you go can keep you circling the first few chapters for months while the rest of the book waits.

Instead, give yourself permission to write a rough first draft all the way through. If you need a fact or a statistic you don’t have yet, leave a quick note in brackets and keep going. You’ll have plenty of time to revise once the whole draft exists, and revising a finished draft is much easier than revising a half-written one. My complete beginner’s guide on how to write a nonfiction book shows where drafting and revising each fit in the bigger process.

4. Setting a Deadline That Doesn’t Fit Your Life

Many first-time authors give themselves a few months to write their book, and then life happens, as it always does. Falling behind a deadline that was never realistic can feel like failing, and that discouragement is often what leads authors to set the book aside.

For most of the first-time nonfiction authors I work with, writing a book takes about a year. Planning around a timeline like that gives you room to learn, to have a slow week, and to keep going anyway. My post on how long it takes to write a nonfiction book breaks down what that year usually looks like, and my guide on how to create a writing schedule shows you how to turn your word count into a weekly goal.

5. Trying to Fit Everything Into One Book

When you know a lot about your subject, it’s natural to want to share all of it. But a book that tries to cover everything can leave readers unsure what to do with what they’ve read.

A gentler approach is to choose one clear promise for this book and let everything else wait. If a chapter doesn’t help your reader get closer to that promise, set it aside in a separate file. Those saved ideas often turn into blog posts, talks, or even a second book later on.

If you’d like a roadmap for the whole journey: My book How To Write Your First Book walks you through it step by step, from shaping your book idea and choosing your publishing path to getting your book found on Amazon and planning your marketing. It’s a 122-page autographed paperback, and it’s written for exactly the questions first-time authors tend to have.

Get How To Write Your First Book ($10 + $3.95 U.S. shipping)

6. Hiring the Wrong Kind of Editor First

This is a mistake that can cost real time and money. Many first-time authors assume their manuscript needs a copy editor to clean up the grammar, so they hire one first. Then they discover the bigger issues, like chapters in the wrong order or a missing section the reader needs, and the copy editing has to be done again on the revised manuscript.

The order that saves you the most is developmental editing first, then your revisions, then copy editing, and then proofreading. I explain the difference in developmental editing vs. copy editing.

A related mistake is relying only on feedback from friends and family. Their encouragement matters, and early readers can be really helpful. Reedsy’s guide to working with beta readers is a nice place to learn how to use them well. Still, comments like “I liked it” or “the middle felt slow” don’t tell you what’s causing the problem or how to fix it. If you’ve been sensing that something is off but can’t name it, my post Do I Need a Developmental Editor? walks through the signs. You also don’t need to wait until your draft is finished. Developmental editing can help at any stage, including partway through, when you just want to know you’re headed in the right direction. Before you hand your pages to anyone, my tips for self-editing can help you make your manuscript as strong as possible on your own.

7. Waiting Until After the Book Is Out to Think About Marketing

Whether you self-publish or go the traditional route, you’ll play a big part in helping readers find your book. Many first-time authors wait until release day to think about that, and then feel like they’re starting from zero.

You don’t need a big following to start. Building a small email list, showing up in one place where your readers already spend time, and sharing what you know about your topic while you write will all make your launch feel much calmer. My book marketing strategy guide explains the big picture, and when your release date is on the calendar, my book launch plan for self-published authors gives you a week-by-week plan.

A Quick Recap

If you only remember a few things from this post, let it be these. Get clear on your reader before you start, outline before you draft, and let your first draft be rough. Give yourself a timeline that fits your real life, keep your book focused on one promise, get the right kind of feedback in the right order, and start sharing your work with readers before release day.

None of these mistakes means you’re not cut out to write a book. They’re simply part of learning how, and every one of them can be fixed.

Would You Like Support Avoiding These Mistakes?

If you’re at the beginning of your nonfiction book and you’d like guidance and accountability as you shape your idea, your outline, and your writing goals, my coaching program was built for exactly that. If you’re not sure whether coaching is the right fit, that’s what the free strategy session is for. We’ll look at where you are in the process and figure out which kind of support makes the most sense for you, whether that’s coaching, developmental editing, or another next step.

Apply for a Free Strategy Session

Grab the Free Author Checklist

One of the easiest ways to avoid these mistakes is to know what should be in place before you start writing. My free Author Checklist walks you through the essentials so nothing important gets missed along the way.

Download the Free Author Checklist

Which of these seven feels most familiar to you right now? Share it in the comments. I’d love to hear where you are and help you work through it.