Every year another platform tells authors where readers have moved to. Meanwhile a few hundred thousand people sit in Facebook groups for authors and readers every day, asking each other what to read next. You do not have to build that audience. It already exists, it is already talking about your genre, and a recommendation there carries more weight with a reader than any advert you could pay for.
The catch is that these are real communities, with their own rules and long memories. You cannot buy your way in or shortcut it, and members can spot an author who joined only to sell within a post or two. Show up wrong and you get removed, ignored, or quietly resented. Here is how to show up in a way that actually earns you readers.
Find the groups that hold your readers
Type a genre term into the Facebook search bar, then switch to the Groups tab. The groups do not show up in the default results, which is why most authors never find the good ones. Search combinations rather than single words: “cozy mystery readers,” “romantasy book club,” “Kindle Unlimited romance.” Then search the things a reader actually cares about.
Comp authors are the most productive search you can run. “Lucy Score readers” or “Steve Berry fans” turns up rooms built entirely from your ideal reader. Trope searches (“enemies to lovers,” “small town romance,” “locked room mystery”) find smaller groups that are far more engaged than broad genre groups. Then sort what you find into a few home groups you actually take part in, a handful you only search and answer in, and a short list of promo-only rooms. Trying to be present in fifteen groups is how authors burn out in three weeks.
Be a member, not a marketer
You are a reader who also writes. Most of your time in a group has nothing to do with your own books. That is what makes the occasional mention welcome. Recommend other people’s books, talk about what you read and what you gave up on, answer a question in your genre when you know the subject. Your own books are the smallest slice of what you post, and they come last.
This is the same principle that runs a good author newsletter: serve far more than you sell, and the one ask works better because you earned the room first. A group is somewhere you take part, the way you would in any room full of people who love what you love.
The house rules nobody spells out
Read the pinned rules properly before you say anything, and note what the group actually enforces: the promo day, whether links are allowed, and whether author Pages can join at all. Then use your personal profile, not your author Page. It feels less professional. It is almost always the right call anyway, because a Page reads as an announcement and many reader groups block Pages outright. You get to be a person who reads, which is the identity these rooms respond to.
The other rule is disclosure. Any time the conversation touches your own book, say so in the same breath: “full disclosure, it’s mine.” Undisclosed self-recommendation is what gets noticed and what loses people their place in a group. It also keeps you the right side of the FTC, which treats a recommendation of your own book, or a book you were paid or given for free to promote, as something readers are owed a heads-up about.
What a promo post actually looks like
On a promo day, in the format the admin asks for, a good self-promo post leads with the title and author on line one, where admins scan and readers screenshot. Then the basics before any hook: genre, where it sits in the series, and whether it is in Kindle Unlimited or wide. Write the hook yourself in one or two lines, because a pasted blurb reads as an advert instantly. Add content notes if the room expects them, put the link where the group’s rule says to put it, and end on a question so the post has somewhere to go. A free first-in-series is a smaller ask than a purchase, and it gives interested readers an easy way onto your list.
The lines you do not cross
Do not add people who commented on your thread to your mailing list. Do not DM a book link to someone who engaged with a post. Do not screenshot a closed group, quote members elsewhere, or take a tense thread to the DMs to win it. The rule under all of them is the same: you are a guest in the group. Treat it that way for long enough and the recommendations start coming from other people. It is one more piece of the case for a platform that does not depend on any single algorithm.
Frequently asked questions
How do I find the right Facebook groups for my readers?
Search a genre term, then switch to the Groups tab, and search comp authors and tropes such as Lucy Score readers or enemies to lovers to find rooms built from your ideal reader. Sort them into groups you take part in, ones you only answer in, and promo-only rooms.
Should I use my author Page or my personal profile in reader groups?
Use your personal profile. A Page reads as an announcement and many reader groups block Pages outright, while a personal profile lets you show up as a reader who also writes.
How do I promote my book in a group without getting removed?
Post only on the group’s promo day in the format the admin asks for, disclose that the book is yours, and spend most of your time recommending other people’s books and answering questions. Your own book is the smallest slice of what you post.
Get the free Reader Group Field Guide
This post is the overview. The full Reader Group Field Guide is the one to keep open while you actually do it: how to find and vet groups, a one-sheet tracker, the exact search phrases by genre, your content pillars, four worked replies, a self-promo post broken down line by line, and a plain-language glossary of every abbreviation (ISO, DNF, HEA, CNC) a group will throw at you. It is free. I wrote it for authors who would rather be writing.
And if showing up consistently in the right rooms is the part you do not have time for, that is one of the things I run for authors. Tell me your genre and where you are stuck, and we will start there.