5 Book Description Mistakes You Might Not Know You’re Making

We’ve all heard that when writing your book description, you should open with a hook, establish your protagonist, and end with a big cliffhanger. This is something I’ve done and taught for years.

But there’s one other part of your blurb that most authors miss. And leaving it out might be costing you opportunities for book sales.

I call it your selling paragraph.

I first learned about it from masterful copywriter Bryan Cohen. This is the final paragraph of your book description, and it lets you “step outside” of your plot and speak directly to readers. But most of the time, authors either rush it, or omit it entirely.

Brief though it is, your selling paragraph plays a distinct role. It shifts the blurb from plot description to market positioning, helping readers understand not just what the book is about, but whether it’s for them.

After writing over 4,000 blurbs for authors across multiple genres, I’ve collected a list of techniques that authors can use to build a strong selling paragraph that will have readers clicking buy.

1. Use “X Meets Y”

You can build credibility and attract readers by comparing your book with popular titles or authors they already enjoy. Doing this helps create associations in readers’ minds by relating your book to things they’re already familiar with. Consider this example:

As an epic fantasy adventure blending classic sword and sorcery with immersive worldbuilding, this book is perfect for fans of Sabriel and The Bone Shard Daughter.

Readers who are familiar with these titles are more likely to recognise your book’s appeal. As a word of warning, take care to choose the most relevant comparisons, as they communicate subtle details about your book’s style, tone, and place in the market.

My favorite example of this is a book that marketed itself as “James Bond meets Cthulhu.” This tells us so much about the book’s genre and tone in four simple words, and it does so far more effectively than if the author were to spend two paragraphs trying to explain it.

2. Signal Your Tropes & Tone

Your selling paragraph is the perfect opportunity to list your tropes. This matters, especially for genre books, as readers often gravitate toward their favorite tropes when seeking new books to buy. Take a look at the following example, drawn from my free copywriting book, The Blurb Puzzle:

This punchy enemies-to-lovers college romance will keep you on your toes with forced proximity, opposites attract, and slow-burn tension.

This single sentence tells readers an immense deal of information about the book. Tropes like enemies-to-lovers are extremely popular in romance, and so including this in your blurb (as long as your book actually features it!) convinces readers who enjoy those tropes to buy.

This technique has the added bonus of filtering out readers who don’t like your tropes, preventing disappointed readers and potential low reviews.

3. Describe Your Book as a Reader

Many authors shy away from using descriptive terms like “page-turning” in their blurb because they’re afraid of appearing prideful or salesy. But this is a huge missed opportunity because readers often buy based on how a blurb makes them feel.

Think of it like you’re a reader describing the book to their friends. A thriller might be “gripping” and packed with “high-octane action”, a fantasy might have “immersive worldbuilding”, and a psychological horror might be “dark and gritty.”

In many cases, a blurb benefits from sounding like a genuine reader response rather than a neutral summary.

4. Include Relevant Personal Experience

For many fiction authors, this may not be necessary. But if you have personal or professional experience that relates to your book, consider mentioning it. For non-fiction, highlight your achievements, awards, or accolades.

Are you a combat veteran writing a war story? An attorney writing a legal thriller? A detective writing a mystery novel? Your background can lend credibility to the kind of books you write.

But take care to only use this if it adds credibility, otherwise, it’s wasted space.

5. Add a Call to Action

Many blurbs fall short because they don’t leave the reader with any desire to act. Giving a final, explicit command to your audience encourages the reader to take the next step. Here are some easy examples:

  • “Start the adventure today.”
  • “Grab your copy and start reading.”
  • “Scroll up and buy now.”

When prospective readers finish your blurb, they should know exactly what the next step is. A clear call to action helps guide the reader, rather than leaving the blurb to fade without direction.

Putting it all together:

This is an example of a selling paragraph that implements everything we’ve covered:

Step into an explosive police procedural thriller that combines the fast-paced action of James Patterson with the gritty authenticity of a real secret intelligence agent. Start reading today.

Notice how the book signals its genre and tone using descriptive words and popular tropes. Additionally, it leverages the author’s relevant credentials and compares the story to a popular author.

Not every blurb needs to use all of these techniques. Each one has its place, depending on the book you’re selling.

But when used effectively, a selling paragraph can strengthen an already solid blurb, helping clarify its appeal, guide your readers, and leave a more lasting impression.


Want to improve your book sales a with a professional, done-for-you book description? Click here to find out more.

Morgan Lee Clasper is a copywriter, book sales strategist, and author of The Blurb Puzzle. With over seven years of experience in the publishing industry, he’s worked with New York Times, Wall Street Journal, and USA Today bestselling authors, writing 4,000 blurbs and counting.

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