Turn author trust into your next readers.
ShelfSpark matches indie authors for effortless newsletter swaps, then tracks which recommendations bring curious readers to your books—without buying another ad.
Free for two swaps a month. No credit card required.
The ShelfSpark promise
Fit before volume
Matches prioritize genre, audience overlap, and compatible list size—not an endless directory.
You stay in control
Review every book and partner before a recommendation reaches your subscribers.
Results stay visible
Every swap includes a tracked link, so you can see what earns attention.
From upload to inbox
A better swap loop, minus the spreadsheet.
ShelfSpark turns a proven, manual growth tactic into a focused workflow designed around reader trust.
- 01
Add your book and audience
Share genre, title details, and mailing-list size. ShelfSpark uses that context to seek credible, adjacent matches.
- 02
Approve the right partner
Review the book and author before accepting. A focused network and deliberate vetting protect your readers' trust.
- 03
Send a polished recommendation
Use the ready-made blurb and tracked link in your newsletter. Your partner receives the same frictionless setup.
- 04
Keep discovery working
Measure clicks, add the recommendation widget, and unlock shareable milestones as your swap history grows.
Recommendations that keep working after send day.
Embed a Readers also loved widget in back matter, on your website, or below your email signature. Every placement creates another trusted path between books.
One-click newsletter swaps
Get a ready-made blurb and tracked link for every match—without the email coordination.
Network-powered recommendations
Add a Readers also loved widget to back matter, websites, and email footers.
Straightforward pricing
Spend on connections, not ad auctions.
Start with two swaps each month, then upgrade when recommendations become part of your launch rhythm.
Starter
Test the network with your next release.
$0/month
- 2 swaps each month
- Genre-aware matching
- Ready-made swap blurbs
- Tracked recommendation links
Author
Build a repeatable reader-growth engine.
$12/month
- Unlimited swaps
- Performance analytics
- Readers also loved widget
- Featured Author milestones
Press
Coordinate discovery across your catalog.
$49/month
- Multiple author profiles
- Catalog-wide swap management
- Portfolio analytics
- Priority matching support
Before you swap
Questions authors ask.
Your readers know what good feels like
Let trusted recommendations find your next fans.
Bring one book and your mailing list. ShelfSpark will help you turn the next right author connection into measurable discovery.