Write book blurbs that sell
AI generates compelling blurbs and full Amazon descriptions from your genre and hook. Get marketing copy that converts browsers into readers.
Write book blurbs that sell
River's Book Blurb and Amazon Description Writer creates compelling marketing copy for your book. You provide your genre, hook, and key selling points. The AI writes both a tight 250-word back-cover blurb and a full Amazon product description with all the elements that drive sales. Within minutes, you have professional marketing copy that makes browsers click buy. Perfect for indie authors who need to sell their books but struggle with writing promotional material.
Unlike generic templates or basic plot summaries, we write sales-focused copy that hooks readers emotionally. The AI creates blurbs with intriguing setups, escalating stakes, and cliffhanger endings that make readers desperate to know what happens. You get marketing copy that emphasizes genre expectations, emotional payoffs, and unique hooks. The Amazon description includes editorial reviews format, series information sections, and all the elements that convert browsers into buyers.
This tool is perfect for indie authors publishing on Amazon, traditional authors who want input on back-cover copy, or anyone who needs to distill their book into compelling sales material. Use it when your book is finished and you need marketing copy that actually sells. Great for authors who can write novels but freeze when trying to market themselves. The AI handles persuasive copywriting so you can focus on what you do best.
What Makes Book Blurbs Sell
Great book blurbs are sales copy, not plot summaries. Your blurb's job is to make someone buy the book, not to explain what happens. Think of it like a movie trailer. You want to establish the premise, introduce stakes, create intrigue, then stop right when things get interesting. The best blurbs make readers ask 'What happens next?' and buy the book to find out. Weak blurbs explain too much or fail to create emotional urgency. Give readers a reason to care, not a chapter-by-chapter breakdown.
Genre expectations matter enormously. Romance readers want to know about relationship dynamics and emotional conflict. Thriller readers want to know about danger and twists. Fantasy readers want to know about the world and magic system. Your blurb must signal genre clearly so the right readers recognize this book is for them. Use genre-specific language and emphasize elements your target readers care about. A literary fiction blurb that sounds like a thriller blurb will attract the wrong readers and disappoint them.
Amazon descriptions require specific formatting for maximum conversion. Start with a hook paragraph that grabs attention. Add bullet points or short paragraphs highlighting key selling points. Include an editorial review section with blurbs (even from beta readers or book bloggers). Mention series information if relevant. Add author bio at the bottom. Use HTML formatting to create bold text, italics, and spacing. The goal is scannable, persuasive copy that makes the buy button irresistible. Readers decide in seconds. Make those seconds count.
What You Get
Compelling 250-word back-cover blurb that hooks readers emotionally
Full Amazon product description with formatted sections and sales elements
Genre-appropriate language that signals to your target audience
Stakes and conflict emphasized without spoiling plot twists
Professional marketing copy that converts browsers into buyers
How It Works
- 1Describe your bookProvide genre, hook, key conflict, and what makes your book unique
- 2AI writes marketing copyOur AI generates both a back-cover blurb and full Amazon description in 3-4 minutes
- 3Review and refineAdjust hook, emphasize specific elements, and ensure genre signals are clear
- 4Publish and sellUse your polished copy on Amazon, your website, and promotional materials
Frequently Asked Questions
Will this work for nonfiction books too?
The tool is optimized for fiction, but you can adapt it for nonfiction. For nonfiction, describe your book's topic, target audience, and key benefits or solutions you provide. The AI will generate marketing copy, though you'll likely need to revise more heavily to emphasize credibility, expertise, and practical value. Nonfiction blurbs focus on problems solved and transformations delivered, not story hooks. The structure is different but the tool can provide a starting point.
How much of my plot should I reveal?
Reveal the setup and first-act conflict, but stop before major twists or the climax. Your blurb should cover roughly the first 25-30% of your book. Introduce the protagonist, their situation, and the central conflict. Create stakes and urgency. Then stop with a cliffhanger question or statement that makes readers desperate to know what happens. Never reveal the ending or major surprises. Those are why people buy the book.
What if I don't know comparable titles?
That's fine, though comp titles help buyers understand your book. If you don't have them, focus on describing your genre, tone, and unique elements clearly. The AI will still create effective copy. However, research bestsellers similar to your book. Comp titles help with Amazon algorithms and give potential readers reference points. You can add them during revision. Format: 'Perfect for fans of [Author Name] and [Author Name]' or 'If you loved [Book Title], you'll love this.'
Can I use the same blurb for back cover and Amazon?
The short blurb works for both, but Amazon allows much more space. Use the 250-word blurb for your back cover and print marketing. On Amazon, use the full description with additional sections like editorial reviews, series info, and expanded selling points. Amazon shoppers scroll and scan, so longer, formatted descriptions with multiple hooks work better there. Back cover space is limited, so the tight blurb is all you need.
What if the blurb doesn't capture my book's uniqueness?
The AI creates effective genre-focused copy, but you'll likely need to revise to highlight what makes YOUR book special. During revision, add your unique angle. If your thriller has an unusual setting, emphasize that. If your romance has a unique trope or dynamic, make that clear. If your fantasy has a magic system readers haven't seen before, tease it. The generated blurb gives you structure and sales language. You layer in the specifics that make your book stand out in a crowded genre.
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