I made every mistake on this list. Some of them twice. A few of them cost me months of lost sales, and at least one cost me actual money I'll never see again. If this post saves you from even one of them, it's done its job.
1. Publishing Before the Book Is Ready
I know the feeling. You've been writing for months — maybe years — and you just want the thing out there. So you skip the final proofread, decide the formatting is "good enough," and hit publish.
Don't. A book riddled with typos, formatting errors, or plot holes will earn one-star reviews faster than you can say "but the story is really good." Get a proofreader. Not your spouse. Not your English teacher mate. A professional proofreader who works with fiction. It's a few hundred quid and it's non-negotiable.
2. Designing Your Own Cover
I've covered this in detail elsewhere, but it bears repeating here. Your cover is the single most visible element of your book. If it looks amateur, readers will assume the contents are too. Hire a professional. Budget £200–£500 and consider it the cost of being taken seriously.
3. Writing a Blurb That's Actually a Synopsis
Your blurb is not a summary of the plot. It's a hook — a tease that makes the reader want to know more. If your blurb gives away the ending, reveals every subplot, or reads like a Wikipedia article, it's doing the opposite of its job. Write it like a film trailer, not a school book report.
4. Ignoring Categories and Keywords
You've written a brilliant book. You've got a professional cover and a killer blurb. Then you dump it into "Fiction > General" with keywords like "book" and "good story." Congratulations — you've just made your book invisible to every reader on Amazon.
Categories and keywords determine who finds your book. Spend an hour researching them. It's the most impactful hour you'll invest in your entire publishing process.
5. Pricing Like a Traditional Publisher
Your debut ebook is not worth £9.99. I'm sorry, but it isn't. Not because it's bad — it might be brilliant — but because the reader has never heard of you, and £9.99 is a lot to risk on a complete unknown. Price your debut between £1.99 and £2.99. Build a readership first. Raise prices later.
6. Expecting Instant Results
I published my first book on a Tuesday and by Friday I was convinced it was a failure because I'd sold eleven copies. Eleven! The injustice of it all.
Here's what nobody tells you: most self-published books are slow burners. They build momentum over weeks and months, not hours and days. The first week is not a reliable indicator of long-term performance, especially if you're still building reviews and visibility.
Give it time. Keep promoting. Write the next book. The authors who succeed in self-publishing are the ones who treat it like a marathon, not a sprint.
7. Not Writing the Next Book
This is the biggest one. The single best marketing tool for your first book is your second book. And the best marketing tool for your second book is your third. Every book you publish increases your visibility, your credibility, and your income potential.
I've seen authors spend years trying to market one book when they'd have been far better off spending that time writing another. A back catalogue sells books in a way that no amount of social media posting or paid advertising ever will.
The Pattern
Notice something about this list? Almost none of these mistakes are about writing. They're about packaging, positioning, and patience. The writing is the bit you've already done — and presumably done well. The publishing part is a different skill set entirely, and it's the one that determines whether your book finds readers or gathers dust.
Learn it. Get it right. Then write the next one.