Kindle Unlimited Author Promo Services

Boost Your KU Free Days With Ease, Strategy, and Real Visibility

Welcome! If you’re a romance author publishing in Kindle Unlimited, you already know one truth: free days only work if readers actually see your book. That’s where we come in.

Love Letters to Romance offers simple, high-impact promotional boosts designed specifically for KU authors who want more downloads, stronger rank, and better read-through without doing all the heavy lifting.

Antihero’s Obsession is a curated KU promo focused exclusively on dark romance.
We build a clean, high-converting feature page and drive targeted traffic from dark-romance-hungry readers straight to your book while it’s free.
You choose your KU dates. We handle the rest.

You keep full control of your Amazon listing, pricing, and KU schedule.
We simply amplify your visibility with coordinated traffic.

check out our current offerings

upcoming one month collections

billionaire romance

age gap romance

sports romance

dark romance

Love Letters to Romance is a curated reader magnet network for romance authors. Each round features a tightly themed BookFunnel collection that puts your book in front of thousands of new subscribers — all matched by trope and spice level.


We handle the setup, design, copy, timing, and promo art. You get a beautiful landing page, a network of aligned authors, and hundreds of potential new fans.


Participation is paid, limited, and curated by theme. We don’t lump mafia next to cowboys or fade-to-black next to kink.


Because your brand deserves better than a random link dump.

What we do
This is a premium, done-for-you list-building opportunity hosted through BookFunnel. Each author contributes one full-length book, which will be offered to readers for free during the collection period. We manage everything on the back end, from setup to promo materials to scheduling. Past events have brought in over 10,000 readers total, with most authors gaining between 500 and 2,000 new subscribers.

What’s included

  • Complete tech setup and project management

  • A curated, heat-matched BookFunnel landing page

  • Custom graphics and blurbs for your newsletter and socials

  • Email promotion to our 60,000+ subscriber list

  • Cross-promotion from all participating authors

What we need from you

  • A full-length standalone or the first in a series (not in KU during the promo)

  • Your magnet link and author bio

  • One newsletter send and one social post during the promo

  • A flat participation fee of $300 (includes PayPal fees)

what you can expect

Meet the love letters to romance crew

Vivian and Danielle

Vivian Wood is a Wall Street Journal and Amazon Top 20 bestseller. She dreams about reckless bad boys, damaged billionaires, ruined princesses, mouthy ballerinas, and anti-heroes that are oh so deliciously bad. She writes contemporary romance one luxurious page at a time.

Danielle Leigh is the founder of Spellbound Stories Book Blog and Happily Ever After Assistant. For more than eight years, she’s helped romance authors bring their stories to life with creativity, precision, and heart. A lifelong reader fueled by coffee and a deep love of happily ever afters, Danielle is passionate about supporting authors as they craft the swoony, emotional stories readers can’t stop talking about.

Still have Questions?

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