A reader magnet is free content you offer readers in exchange for their email address. It is the single most effective way for authors to build an email list, and an email list is the single most valuable marketing asset an author can own.

This guide covers the types of reader magnets that work, how to deliver them, and where to promote them so your list grows on autopilot.

Why every author needs a reader magnet

Social media followers are rented. Amazon rankings are temporary. An email list is the only direct line to your readers that no algorithm can take away.

According to a study by Litmus, email marketing returns an average of $36 for every $1 spent. For authors, that means every subscriber on your list has measurable value when you launch new books, run promotions, or sell courses and merchandise.

Without a reader magnet, your only call to action is “sign up for my newsletter,” which converts at roughly 1 to 3 percent. A compelling reader magnet raises that to 10 to 30 percent because you are offering something specific and valuable in return.

Types of reader magnets that work

For fiction authors

Prequel novella. Write a short story (10,000 to 20,000 words) that takes place before your first book. This introduces readers to your world and characters without spoiling the main series. Prequel novellas are the gold standard for fiction reader magnets because they create investment in the series.

Bonus chapter or epilogue. Write an additional scene that takes place after the events of one of your books. Readers who finish your book and want more are the highest-converting audience for this type. Place the signup link in your book’s back matter.

Character guide. Create a visual or written guide to your characters, including backstory details, relationship maps, and world-building notes that did not make it into the published books. This works especially well for fantasy, sci-fi, and romance series with large casts.

Deleted scene. Share a scene you cut during editing, with a brief note explaining why it was cut and where it would have fit. Readers love behind-the-scenes access.

Short story in the same world. Write a standalone short story featuring a side character or a different time period in your fictional universe. This gives readers something complete rather than a teaser.

For nonfiction authors

Checklist or cheat sheet. Condense your book’s key advice into a one-page printable reference. A book about productivity could offer a “Daily Focus Checklist.” A book about building an author platform could offer a “Platform Launch Checklist.”

Workbook or worksheet. Create fillable exercises that accompany your book’s framework. Readers who engage with your material actively are more likely to recommend your book and buy your next one.

Template pack. Offer ready-to-use templates related to your book’s topic. A book about email marketing could include email templates. A book used as a lead magnet for a consulting practice could offer proposal templates.

Mini-course. Deliver a 3 to 5 email sequence that teaches a condensed version of one chapter’s material. This builds engagement over days rather than delivering everything at once.

How to create your reader magnet

Step 1: Match it to your book

Your reader magnet must connect directly to your published work. A romance author offering a budget spreadsheet template will attract subscribers who never buy romance novels.

Ask yourself: what would someone who just finished my book want next? The answer to that question is your reader magnet.

Step 2: Keep it short and valuable

Reader magnets should take 15 to 60 minutes to consume. A 50,000-word novel is too much. A single-page PDF is often too little. The sweet spot for fiction is 10,000 to 20,000 words. For nonfiction, 5 to 15 pages of actionable content.

Step 3: Write and format it

Write your reader magnet with the same quality as your published work. Readers will judge your books by the quality of your freebie. Typos, poor formatting, or thin content will lose subscribers rather than convert them to buyers.

Use Chapter to write and export your reader magnet in ebook format, or create a designed PDF using Canva or Google Docs for nonfiction formats like checklists and templates.

Step 4: Create a professional cover

Even a free ebook needs a cover. It makes your reader magnet look like a real product rather than a throwaway freebie. Use your series branding for fiction (matching fonts, color palette, style) or clean professional design for nonfiction.

Where to deliver your reader magnet

You need a system that automatically sends the file when someone subscribes. Here are the three main options.

BookFunnel

BookFunnel is the most popular delivery platform for fiction authors. It handles ebook delivery to every device and format (Kindle, Kobo, Apple Books, PDF, epub), provides a landing page, and integrates with all major email services.

Pricing: Starts at $20/year for the basic plan. Best for: Fiction authors delivering ebooks and novellas.

StoryOrigin

StoryOrigin combines reader magnet delivery with cross-promotion tools. You can join group giveaways with other authors in your genre, which accelerates list growth.

Pricing: Starts at $10/month. Best for: Fiction authors who want built-in cross-promotion.

Direct download via email service

If your reader magnet is a PDF (checklist, workbook, template), you can deliver it directly through your email service provider. ConvertKit, MailerLite, and Mailchimp all allow file attachments or download links in automated welcome emails.

Pricing: Free with your existing email service. Best for: Nonfiction authors with PDF-format lead magnets.

Where to promote your reader magnet

Back of book (most important)

The single highest-converting placement for your reader magnet is the back matter of your published books. A reader who just finished your book and enjoyed it is primed to want more.

Place a clear call to action on the last page before your “About the Author” section:

“Want more? Download [Title of Reader Magnet] free when you join my readers’ list at [your link].”

Every book you publish should include this. It turns each sale and each Kindle Unlimited borrow into a potential subscriber.

Your author website

Create a dedicated landing page for your reader magnet. This page should have one purpose: collect an email address in exchange for the free content. No navigation menu, no distractions, no “also check out my blog.”

Include the landing page link in your social media bios, email signature, and anywhere you have an online presence. Building an author platform is easier when you have a specific offer to drive people toward.

Social media

Share your reader magnet regularly on your social platforms. Do not just post the link. Create content around it: share a quote from the novella, a preview of the checklist, or a behind-the-scenes look at how you created it.

Pin the reader magnet post to the top of your profiles on platforms that allow pinning.

Writing newsletter cross-promotions

Partner with other authors in your genre to promote each other’s reader magnets to your respective lists. StoryOrigin and BookFunnel both facilitate these cross-promotions. Starting a writing newsletter gives you the foundation to participate in these swaps.

This is one of the fastest ways to grow your list because the subscribers are already proven readers of your genre.

Common mistakes to avoid

  • Making it unrelated to your books. Your reader magnet should attract the same readers who would buy your books. A fantasy author giving away a cookbook will build a list that never converts.
  • Not including it in your back matter. If your reader magnet is not in the back of every book you publish, you are leaving subscribers on the table with every sale and borrow.
  • Writing it at a lower quality than your books. Your reader magnet is your first impression for new subscribers. Poor quality teaches them to ignore your future emails.
  • Not having an email sequence after delivery. After someone downloads your reader magnet, send a 3 to 5 email welcome sequence that introduces you, shares your other books, and builds a relationship. A subscriber who never hears from you will forget who you are.
  • Offering too many reader magnets. One strong reader magnet per series or per book is enough. Multiple competing offers confuse potential subscribers and split your conversion.

FAQ

How often should I update my reader magnet?

Review it annually. If your series has evolved, your branding has changed, or you have found that a different format converts better, update it. Otherwise, a well-made reader magnet can run for years without changes.

Can I use my reader magnet for BookBub or other promotions?

Yes. Some authors make their reader magnet novella available as a free ebook on retailers and use promotional services to drive downloads. This is a strategy for reaching readers outside your existing audience, though it is less targeted for list building than a gated download.

What email service should I use to manage my list?

ConvertKit (now Kit) is the most popular choice for authors. MailerLite is a strong budget option with a free tier up to 1,000 subscribers. Both integrate with BookFunnel and StoryOrigin for seamless reader magnet delivery.